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Posted to commits@dubbo.apache.org by gi...@apache.org on 2019/09/02 05:19:37 UTC

[dubbo-website] branch asf-site updated: Website updated with 54aa1ad736ce575d5ae6cfe37f0b12fee43be1fc

This is an automated email from the ASF dual-hosted git repository.

git-site-role pushed a commit to branch asf-site
in repository https://gitbox.apache.org/repos/asf/dubbo-website.git


The following commit(s) were added to refs/heads/asf-site by this push:
     new 8393ed6  Website updated with 54aa1ad736ce575d5ae6cfe37f0b12fee43be1fc
8393ed6 is described below

commit 8393ed64b80af2d471204a523f32675cbf892763
Author: jenkins <us...@infra.apache.org>
AuthorDate: Mon Sep 2 05:19:32 2019 +0000

    Website updated with 54aa1ad736ce575d5ae6cfe37f0b12fee43be1fc
---
 COMMIT_ID                                          |   2 +-
 build/documentation.js                             |   2 +-
 en-us/docs/admin/README.html                       |   2 +-
 en-us/docs/admin/SUMMARY.html                      |   2 +-
 en-us/docs/admin/install/admin-console.html        |   2 +-
 en-us/docs/admin/install/consumer-demo.html        |   2 +-
 en-us/docs/admin/install/introduction.html         |   2 +-
 en-us/docs/admin/install/provider-demo.html        |   2 +-
 en-us/docs/admin/install/redis.html                |   2 +-
 .../docs/admin/install/simple-monitor-center.html  |   2 +-
 .../docs/admin/install/simple-registry-center.html |   2 +-
 en-us/docs/admin/install/zookeeper.html            |   2 +-
 en-us/docs/admin/introduction.html                 |   2 +-
 en-us/docs/admin/ops/dubbo-ops.html                |   2 +-
 en-us/docs/admin/ops/introduction.html             |   2 +-
 en-us/docs/admin/ops/pinpoint.html                 |   2 +-
 en-us/docs/admin/ops/skywalking.html               |   2 +-
 en-us/docs/admin/serviceGovernance.html            |   2 +-
 en-us/docs/admin/serviceSearch.html                |   2 +-
 en-us/docs/admin/serviceTest.html                  |   2 +-
 en-us/docs/dev/README.html                         |   2 +-
 en-us/docs/dev/SPI.html                            |   2 +-
 en-us/docs/dev/SUMMARY.html                        |   2 +-
 en-us/docs/dev/TCK.html                            |   2 +-
 en-us/docs/dev/build.html                          |   2 +-
 en-us/docs/dev/checklist.html                      |   2 +-
 en-us/docs/dev/code-smell.html                     |   2 +-
 en-us/docs/dev/coding.html                         |   2 +-
 en-us/docs/dev/contract.html                       |   2 +-
 en-us/docs/dev/contribution.html                   |   2 +-
 en-us/docs/dev/design.html                         |   2 +-
 en-us/docs/dev/implementation.html                 |   2 +-
 en-us/docs/dev/impls/cache.html                    |   2 +-
 en-us/docs/dev/impls/cluster.html                  |   2 +-
 en-us/docs/dev/impls/compiler.html                 |   2 +-
 en-us/docs/dev/impls/config-center.html            |   2 +-
 en-us/docs/dev/impls/container.html                |   2 +-
 en-us/docs/dev/impls/dispatcher.html               |   2 +-
 en-us/docs/dev/impls/exchanger.html                |   2 +-
 en-us/docs/dev/impls/exporter-listener.html        |   2 +-
 en-us/docs/dev/impls/extension-factory.html        |   2 +-
 en-us/docs/dev/impls/filter.html                   |   2 +-
 en-us/docs/dev/impls/introduction.html             |   2 +-
 en-us/docs/dev/impls/invoker-listener.html         |   2 +-
 en-us/docs/dev/impls/load-balance.html             |   2 +-
 en-us/docs/dev/impls/logger-adapter.html           |   2 +-
 en-us/docs/dev/impls/merger.html                   |   2 +-
 en-us/docs/dev/impls/monitor.html                  |   2 +-
 en-us/docs/dev/impls/networker.html                |   2 +-
 en-us/docs/dev/impls/page.html                     |   2 +-
 en-us/docs/dev/impls/protocol.html                 |   2 +-
 en-us/docs/dev/impls/proxy-factory.html            |   2 +-
 en-us/docs/dev/impls/registry.html                 |   2 +-
 en-us/docs/dev/impls/remoting.html                 |   2 +-
 en-us/docs/dev/impls/router.html                   |   2 +-
 en-us/docs/dev/impls/serialize.html                |   2 +-
 en-us/docs/dev/impls/status-checker.html           |   2 +-
 en-us/docs/dev/impls/telnet-handler.html           |   2 +-
 en-us/docs/dev/impls/threadpool.html               |   2 +-
 en-us/docs/dev/impls/validation.html               |   2 +-
 en-us/docs/dev/introduction.html                   |   2 +-
 en-us/docs/dev/principals/code-detail.html         |   2 +-
 en-us/docs/dev/principals/configuration.html       |   2 +-
 en-us/docs/dev/principals/dummy.html               |   2 +-
 en-us/docs/dev/principals/expansibility.html       |   2 +-
 en-us/docs/dev/principals/extension.html           |   2 +-
 en-us/docs/dev/principals/general-knowledge.html   |   2 +-
 en-us/docs/dev/principals/introduction.html        |   2 +-
 en-us/docs/dev/principals/robustness.html          |   2 +-
 en-us/docs/dev/release.html                        |   2 +-
 .../committer-guide/apache-dubbo-page_dev.html     |   2 +-
 .../committer-guide/label-an-issue-guide_dev.html  |   2 +-
 .../committer-guide/new-committer-guide_dev.html   |   2 +-
 .../committer-guide/release-guide_dev.html         |   2 +-
 .../committer-guide/website-guide_dev.html         |   2 +-
 .../contributor-guide/become-a-committer_dev.html  |   2 +-
 .../contributor-guide/cla-signing-guide_dev.html   |   2 +-
 .../dubbo-extension-guide_dev.html                 |   2 +-
 .../mailing-list-subscription-guide_dev.html       |   2 +-
 .../new-contributor-guide_dev.html                 |   2 +-
 .../reporting-security-issues_dev.html             |   2 +-
 .../software-donation-guide_dev.html               |   2 +-
 .../contributor-guide/test-coverage-guide_dev.html |   2 +-
 en-us/docs/developers/developers_dev.html          |   2 +-
 en-us/docs/developers/guide_dev.html               |   2 +-
 en-us/docs/developers/user-guide/faq_dev.html      |   2 +-
 en-us/docs/user/README.html                        |   2 +-
 en-us/docs/user/SUMMARY.html                       |   2 +-
 en-us/docs/user/benchmark-tool.html                |   2 +-
 en-us/docs/user/best-practice.html                 |   2 +-
 en-us/docs/user/capacity-plan.html                 |   2 +-
 en-us/docs/user/configuration/annotation.html      |   2 +-
 en-us/docs/user/configuration/api.html             |   2 +-
 en-us/docs/user/configuration/index.html           |   2 +-
 en-us/docs/user/configuration/properties.html      |   2 +-
 .../translate configuration-load-process.html      |   2 +-
 en-us/docs/user/configuration/xml.html             |   2 +-
 en-us/docs/user/coveragence.html                   |   2 +-
 en-us/docs/user/demos/accesslog.html               |   2 +-
 en-us/docs/user/demos/async-call-deprecated.html   |   2 +-
 en-us/docs/user/demos/async-call.html              |   2 +-
 .../docs/user/demos/async-execute-on-provider.html |   2 +-
 en-us/docs/user/demos/attachment.html              |   2 +-
 en-us/docs/user/demos/callback-parameter.html      |   2 +-
 en-us/docs/user/demos/concurrency-control.html     |   2 +-
 en-us/docs/user/demos/config-connections.html      |   2 +-
 en-us/docs/user/demos/config-rule.html             |   2 +-
 en-us/docs/user/demos/context.html                 |   2 +-
 en-us/docs/user/demos/delay-publish.html           |   2 +-
 en-us/docs/user/demos/distributed-transaction.html |   2 +-
 en-us/docs/user/demos/dump.html                    |   2 +-
 en-us/docs/user/demos/echo-service.html            |   2 +-
 en-us/docs/user/demos/events-notify.html           |   2 +-
 en-us/docs/user/demos/explicit-target.html         |   2 +-
 en-us/docs/user/demos/fault-tolerent-strategy.html |   2 +-
 en-us/docs/user/demos/generic-reference.html       |   2 +-
 en-us/docs/user/demos/generic-service.html         |   2 +-
 en-us/docs/user/demos/graceful-shutdown.html       |   2 +-
 en-us/docs/user/demos/group-merger.html            |   2 +-
 en-us/docs/user/demos/hostname-binding.html        |   2 +-
 en-us/docs/user/demos/index.html                   |   2 +-
 en-us/docs/user/demos/introduction.html            |   2 +-
 en-us/docs/user/demos/lazy-connect.html            |   2 +-
 en-us/docs/user/demos/loadbalance.html             |   2 +-
 en-us/docs/user/demos/local-call.html              |   2 +-
 en-us/docs/user/demos/local-mock.html              |   2 +-
 en-us/docs/user/demos/local-stub.html              |   2 +-
 en-us/docs/user/demos/logger-strategy.html         |   2 +-
 en-us/docs/user/demos/multi-protocols.html         |   2 +-
 en-us/docs/user/demos/multi-registry.html          |   2 +-
 en-us/docs/user/demos/multi-versions.html          |   2 +-
 en-us/docs/user/demos/netty4.html                  |   2 +-
 en-us/docs/user/demos/parameter-validation.html    |   2 +-
 en-us/docs/user/demos/preflight-check.html         |   2 +-
 en-us/docs/user/demos/reference-config-cache.html  |   2 +-
 en-us/docs/user/demos/registry-only.html           |   2 +-
 en-us/docs/user/demos/result-cache.html            |   2 +-
 en-us/docs/user/demos/routing-rule.html            |   2 +-
 en-us/docs/user/demos/serialization.html           |   2 +-
 en-us/docs/user/demos/service-container.html       |   2 +-
 en-us/docs/user/demos/service-downgrade.html       |   2 +-
 en-us/docs/user/demos/service-group.html           |   2 +-
 en-us/docs/user/demos/static-service.html          |   2 +-
 en-us/docs/user/demos/stickiness.html              |   2 +-
 en-us/docs/user/demos/subscribe-only.html          |   2 +-
 en-us/docs/user/demos/thread-model.html            |   2 +-
 en-us/docs/user/demos/token-authorization.html     |   2 +-
 en-us/docs/user/dependencies.html                  |   2 +-
 en-us/docs/user/languages/erlang/reference.html    |   2 +-
 .../docs/user/languages/erlang/serialization.html  |   2 +-
 en-us/docs/user/languages/erlang/service.html      |   2 +-
 en-us/docs/user/languages/erlang/start.html        |   2 +-
 en-us/docs/user/maturity.html                      |   2 +-
 en-us/docs/user/perf-test.html                     |   2 +-
 en-us/docs/user/preface/architecture.html          |   2 +-
 en-us/docs/user/preface/background.html            |   2 +-
 en-us/docs/user/preface/index.html                 |   2 +-
 en-us/docs/user/preface/requirements.html          |   2 +-
 en-us/docs/user/preface/usage.html                 |   2 +-
 en-us/docs/user/quick-start.html                   |   2 +-
 en-us/docs/user/recommend.html                     |   2 +-
 en-us/docs/user/references/api.html                |   2 +-
 en-us/docs/user/references/maven.html              |   2 +-
 en-us/docs/user/references/protocol/dubbo.html     |   2 +-
 en-us/docs/user/references/protocol/hessian.html   |   2 +-
 en-us/docs/user/references/protocol/http.html      |   2 +-
 .../user/references/protocol/introduction.html     |   2 +-
 en-us/docs/user/references/protocol/memcached.html |   2 +-
 en-us/docs/user/references/protocol/redis.html     |   2 +-
 en-us/docs/user/references/protocol/rest.html      |   2 +-
 en-us/docs/user/references/protocol/rmi.html       |   2 +-
 en-us/docs/user/references/protocol/thrift.html    |   2 +-
 .../docs/user/references/protocol/webservice.html  |   2 +-
 en-us/docs/user/references/qos.html                |   2 +-
 .../user/references/registry/introduction.html     |   2 +-
 en-us/docs/user/references/registry/multicast.html |   2 +-
 en-us/docs/user/references/registry/nacos.html     |   2 +-
 en-us/docs/user/references/registry/redis.html     |   2 +-
 en-us/docs/user/references/registry/simple.html    |   2 +-
 en-us/docs/user/references/registry/zookeeper.html |   2 +-
 en-us/docs/user/references/telnet.html             |   2 +-
 .../user/references/xml/dubbo-application.html     |   2 +-
 en-us/docs/user/references/xml/dubbo-argument.html |   2 +-
 ...o-application.html => dubbo-config-center.html} | 166 +++++++++++++--------
 .../user/references/xml/dubbo-config-center.json   |   6 +
 en-us/docs/user/references/xml/dubbo-consumer.html |   2 +-
 en-us/docs/user/references/xml/dubbo-method.html   |   2 +-
 en-us/docs/user/references/xml/dubbo-module.html   |   2 +-
 en-us/docs/user/references/xml/dubbo-monitor.html  |   2 +-
 .../docs/user/references/xml/dubbo-parameter.html  |   2 +-
 en-us/docs/user/references/xml/dubbo-protocol.html |   2 +-
 en-us/docs/user/references/xml/dubbo-provider.html |   2 +-
 .../docs/user/references/xml/dubbo-reference.html  |   2 +-
 en-us/docs/user/references/xml/dubbo-registry.html |   2 +-
 en-us/docs/user/references/xml/dubbo-service.html  |   2 +-
 en-us/docs/user/references/xml/introduction.html   |   2 +-
 en-us/docs/user/rest.html                          |   2 +-
 en-us/docs/user/simple-monitor.html                |   2 +-
 md_json/docs.json                                  |   5 +
 199 files changed, 308 insertions(+), 261 deletions(-)

diff --git a/COMMIT_ID b/COMMIT_ID
index a00028f..6563b9b 100644
--- a/COMMIT_ID
+++ b/COMMIT_ID
@@ -1 +1 @@
-86373db0df905fae594bc9853e5dc12b359850a3
+54aa1ad736ce575d5ae6cfe37f0b12fee43be1fc
diff --git a/build/documentation.js b/build/documentation.js
index 9d9623a..f156d9f 100644
--- a/build/documentation.js
+++ b/build/documentation.js
@@ -1,4 +1,4 @@
-!function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var n={};t.m=e,t.c=n,t.i=function(e){return e},t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r})},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p="/build/",t(t.s=319 [...]
+!function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var n={};t.m=e,t.c=n,t.i=function(e){return e},t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r})},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p="/build/",t(t.s=319 [...]
   Copyright (c) 2017 Jed Watson.
   Licensed under the MIT License (MIT), see
   http://jedwatson.github.io/classnames
diff --git a/en-us/docs/admin/README.html b/en-us/docs/admin/README.html
index b97198d..25dc66f 100644
--- a/en-us/docs/admin/README.html
+++ b/en-us/docs/admin/README.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
 	<script src="https://f.alicdn.com/react/15.4.1/react-dom.min.js"></script>
diff --git a/en-us/docs/admin/SUMMARY.html b/en-us/docs/admin/SUMMARY.html
index 86cbc65..1110a67 100644
--- a/en-us/docs/admin/SUMMARY.html
+++ b/en-us/docs/admin/SUMMARY.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <li><a href="introduction.md">1 Dubbo Admin introduction</a>
 <ul>
 <li><a href="serviceSearch.md">1.1 service search and detail</a></li>
diff --git a/en-us/docs/admin/install/admin-console.html b/en-us/docs/admin/install/admin-console.html
index 93c6996..e722a6e 100644
--- a/en-us/docs/admin/install/admin-console.html
+++ b/en-us/docs/admin/install/admin-console.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The current version of dubbo admin is under development, including: route rule, dynamic configuration, access control, weight adjustment, load balance, etc.</p>
 <p>Install:</p>
 <pre><code class="language-sh">git <span class="hljs-built_in">clone</span> https://github.com/apache/dubbo-admin.git /var/tmp/dubbo-admin
diff --git a/en-us/docs/admin/install/consumer-demo.html b/en-us/docs/admin/install/consumer-demo.html
index 7893563..3f55206 100644
--- a/en-us/docs/admin/install/consumer-demo.html
+++ b/en-us/docs/admin/install/consumer-demo.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Install:</p>
 <pre><code class="language-sh">$ git <span class="hljs-built_in">clone</span> https://github.com/apache/dubbo.git
 $ <span class="hljs-built_in">cd</span> dubbo
diff --git a/en-us/docs/admin/install/introduction.html b/en-us/docs/admin/install/introduction.html
index 962578a..b9bcb0b 100644
--- a/en-us/docs/admin/install/introduction.html
+++ b/en-us/docs/admin/install/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>You can run Demo Provider and Demo Consumer only, the default discovery strategy is Multicast by configuration center broadcast, do not run the two parts on the same machine, if you have to do so, set <code>unicast=false</code>, like <code>multicast://224.5.6.7:1234?unicast=false</code>, or the unicast send to consumer will be taken by provider, and the same for consumers. Only multicast has this issue</p>
 <p>You can run multiple Demo Provider and Demo consumer to verify load balance. Demo Consumer can run multi instance directly. Because of port conflict, you can either run multi Demo Providers on different machines or modify the value of <code>dubbo.protocol.port</code> in <code>conf/dubbo.properties</code> under the install directory of <code>conf/dubbo.properties</code></p>
 <p>You can add Simple Monitor as a monitor center, the default discovery strategy is Multicast by configuration center broadcast, display the dependency relationship, call times and cost</p>
diff --git a/en-us/docs/admin/install/provider-demo.html b/en-us/docs/admin/install/provider-demo.html
index 33bd978..4a8796b 100644
--- a/en-us/docs/admin/install/provider-demo.html
+++ b/en-us/docs/admin/install/provider-demo.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>install:</p>
 <pre><code class="language-sh">$ git <span class="hljs-built_in">clone</span> https://github.com/apache/dubbo.git
 $ <span class="hljs-built_in">cd</span> dubbo
diff --git a/en-us/docs/admin/install/redis.html b/en-us/docs/admin/install/redis.html
index a8196ae..5b2b8c3 100644
--- a/en-us/docs/admin/install/redis.html
+++ b/en-us/docs/admin/install/redis.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Redis <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> introductions, please refer to: <a href="http://dubbo.apache.org/books/dubbo-user-book-en/references/registry/redis.html">Redis application center manual</a>。</p>
 <p>you need an origin Redis server only, and change the value from <code>dubbo.registry.addrss</code> to <code>redis://127.0.0.1:6379</code> in <code>conf/dubbo.properties</code> of <a href="http://dubbo.apache.org/books/dubbo-user-book-en/quick-start.html">quick start</a></p>
 <p>Redis configuration center cluster <sup class="footnote-ref"><a href="#fn2" id="fnref2">[2]</a></sup> write multiple server in client side and read from a single server.</p>
diff --git a/en-us/docs/admin/install/simple-monitor-center.html b/en-us/docs/admin/install/simple-monitor-center.html
index 3883a05..9ee4c83 100644
--- a/en-us/docs/admin/install/simple-monitor-center.html
+++ b/en-us/docs/admin/install/simple-monitor-center.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h4>The function of monitor center will be merged to dubbo admin, based on metrics, coming soon</h4>
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
diff --git a/en-us/docs/admin/install/simple-registry-center.html b/en-us/docs/admin/install/simple-registry-center.html
index 7bdc1f8..431a069 100644
--- a/en-us/docs/admin/install/simple-registry-center.html
+++ b/en-us/docs/admin/install/simple-registry-center.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
 	<script src="https://f.alicdn.com/react/15.4.1/react-dom.min.js"></script>
diff --git a/en-us/docs/admin/install/zookeeper.html b/en-us/docs/admin/install/zookeeper.html
index c418b47..24bace7 100644
--- a/en-us/docs/admin/install/zookeeper.html
+++ b/en-us/docs/admin/install/zookeeper.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>zookeeper register center client version: <code>dubbo-2.3.3</code> and above<sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup></p>
 <p>Dubbo changes nothing of Zookeeper's server side, an original Zookeeper server is fine. All change happens while calling Zookeeper's client side</p>
 <p>install:</p>
diff --git a/en-us/docs/admin/introduction.html b/en-us/docs/admin/introduction.html
index fbed687..5afacdb 100644
--- a/en-us/docs/admin/introduction.html
+++ b/en-us/docs/admin/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Now version 0.1 has been released, frontend uses Vue and Vuetify as javascript framework and UI framework, backend uses spring framework, you can deploy the whole project with maven or deploy frontend and backend separately.</p>
 <h3>Deploy the whole project through maven</h3>
 <ul>
diff --git a/en-us/docs/admin/ops/dubbo-ops.html b/en-us/docs/admin/ops/dubbo-ops.html
index d5f1415..5a1e81c 100644
--- a/en-us/docs/admin/ops/dubbo-ops.html
+++ b/en-us/docs/admin/ops/dubbo-ops.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Page search</h2>
 <p>If you need to manage a Dubbo service, you need to search it first and open it's management page</p>
 <p><img src="../sources/images/dubbo-search.jpg" alt="/admin-guide/images/dubbo-search.png"></p>
diff --git a/en-us/docs/admin/ops/introduction.html b/en-us/docs/admin/ops/introduction.html
index 83a0a5a..52f8604 100644
--- a/en-us/docs/admin/ops/introduction.html
+++ b/en-us/docs/admin/ops/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
 	<script src="https://f.alicdn.com/react/15.4.1/react-dom.min.js"></script>
diff --git a/en-us/docs/admin/ops/pinpoint.html b/en-us/docs/admin/ops/pinpoint.html
index db53ec9..3e7cdbd 100644
--- a/en-us/docs/admin/ops/pinpoint.html
+++ b/en-us/docs/admin/ops/pinpoint.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>After using Dubbo to serve or integrate applications, assuming that a service backstage log shows an exception and that the service is invoked by multiple applications, it is often difficult to determine which application is called, and what is the cause of the problem, so we need a set of distributed tracking systems to quickly locate the problem. Pinpoint can help us quickly locate problems (of course, there are more than one solution).</p>
 <h2>What is Pinpoint</h2>
 <p><a href="https://github.com/naver/pinpoint">Pinpoint</a> is an APM (Application Performance Management) tool for large-scale distributed systems written in Java. Inspired by Dapper, Pinpoint provides a solution to help analyze the overall structure of the system and how components within them are interconnected by tracing transactions across distributed applications.</p>
diff --git a/en-us/docs/admin/ops/skywalking.html b/en-us/docs/admin/ops/skywalking.html
index d6bba0c..745b9ef 100644
--- a/en-us/docs/admin/ops/skywalking.html
+++ b/en-us/docs/admin/ops/skywalking.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Introduction to Apache Skywalking(Incubator)</h2>
 <p><a href="https://github.com/apache/incubator-skywalking">Apache Skywalking(Incubator)</a>  is the APM system that it designed for micro-services architectures and cloud native architecture systems and supports distribute tracking. <a href="https://github.com/apache/incubator-skywalking">Apache skywalking (incubator)</a> collects and analyzes the trace data and generates the relationship between the application and the service metric, Apache skywalking  supports multiple languages agen [...]
 <p>Currently, Skywalking has supported analysis the operation of distributed systems from 6 visual dimensions. The overview view is a global view of your applications and components, including the number of components and applications, application alarm fluctuations, slow service lists, and application throughput; The topology shows the topological relationship of the whole application; The application view represents the upstream and downstream relationship of the application from singl [...]
diff --git a/en-us/docs/admin/serviceGovernance.html b/en-us/docs/admin/serviceGovernance.html
index d50817d..d10af44 100644
--- a/en-us/docs/admin/serviceGovernance.html
+++ b/en-us/docs/admin/serviceGovernance.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Service governance</h2>
 <p>服务治理主要作用是改变运行时服务的行为和选址逻辑,达到限流,权重配置等目的,主要有以下几个功能:<br>
 the basic function of service governance is changing the runtime behaviour and routing logic, to do weight configuration and current limiting:</p>
diff --git a/en-us/docs/admin/serviceSearch.html b/en-us/docs/admin/serviceSearch.html
index e6d4b3e..06a57ae 100644
--- a/en-us/docs/admin/serviceSearch.html
+++ b/en-us/docs/admin/serviceSearch.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Service search is the basic function of Dubbo OPS, you can search by service name, application name and IP address, the service name and application name support wildcard and autocomplete:
 <img src="sources/images/searchResult.png" alt="searchResult">
 the service detail page display providers, consumers, medata information is supported in Dubbo 2.7 or higher version:
diff --git a/en-us/docs/admin/serviceTest.html b/en-us/docs/admin/serviceTest.html
index 924485c..053976f 100644
--- a/en-us/docs/admin/serviceTest.html
+++ b/en-us/docs/admin/serviceTest.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
 	<script src="https://f.alicdn.com/react/15.4.1/react-dom.min.js"></script>
diff --git a/en-us/docs/dev/README.html b/en-us/docs/dev/README.html
index 9b2f72e..3296845 100644
--- a/en-us/docs/dev/README.html
+++ b/en-us/docs/dev/README.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>This book dives into the design principles of dubbo, mainly covers the following topics: extension, coding styles, versio, build, etc.</p>
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
diff --git a/en-us/docs/dev/SPI.html b/en-us/docs/dev/SPI.html
index f447cc5..c173535 100644
--- a/en-us/docs/dev/SPI.html
+++ b/en-us/docs/dev/SPI.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>SPI Config</h2>
 <h3>Source:</h3>
 <p>Dubbo SPI is inherited from standard JDK SPI(Service Provider Interface) and makes it more powerful.</p>
diff --git a/en-us/docs/dev/SUMMARY.html b/en-us/docs/dev/SUMMARY.html
index 7827e84..8db314d 100644
--- a/en-us/docs/dev/SUMMARY.html
+++ b/en-us/docs/dev/SUMMARY.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <ul>
 <li><a href="./build.md">1 How To Build</a></li>
 <li><a href="./design.md">2 Architecture</a></li>
diff --git a/en-us/docs/dev/TCK.html b/en-us/docs/dev/TCK.html
index c4f73a2..d88aa56 100644
--- a/en-us/docs/dev/TCK.html
+++ b/en-us/docs/dev/TCK.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo's protocol, communication, serialization, registry, load balancing and other SPI all offer alternative strategies for different application scenarios while our test cases are very scattered. Ours is always uncertain whether it can satisfy the complete contract of the extension point when users need to add a new implementation.</p>
 <p>Thus we need to use TCK (Technology Compatibility Kit) for the core extension points.  When users add a new implementaion, compatibility with the rest of the framework can be ensured with TCK. This can effectively improve the overall health and also facilitate the access of the third party extenders, which accelerates the maturity of the open source community.</p>
 <p>Xingzhi from the open source community is already working on this part. His preliminary idea is to build a TCK framework for Dubbo drawing on the CDI-TCK of JBoss first, then realize the TCK implementing case of Dubbo.</p>
diff --git a/en-us/docs/dev/build.html b/en-us/docs/dev/build.html
index 3664440..86f4331 100644
--- a/en-us/docs/dev/build.html
+++ b/en-us/docs/dev/build.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Checkout</h2>
 <p>checkout the lastest project source code with commands blow:</p>
 <pre><code class="language-sh">git <span class="hljs-built_in">clone</span> https://github.com/apache/dubbo.git dubbo
diff --git a/en-us/docs/dev/checklist.html b/en-us/docs/dev/checklist.html
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--- a/en-us/docs/dev/checklist.html
+++ b/en-us/docs/dev/checklist.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Checklist before release</h2>
 <ul>
 <li>github milestones</li>
diff --git a/en-us/docs/dev/code-smell.html b/en-us/docs/dev/code-smell.html
index d7892bd..125b132 100644
--- a/en-us/docs/dev/code-smell.html
+++ b/en-us/docs/dev/code-smell.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Ugly Dubbo design or implementation will be record here.</p>
 <h2>URL Convertion</h2>
 <h3>1. Point to Point Service export and refer</h3>
diff --git a/en-us/docs/dev/coding.html b/en-us/docs/dev/coding.html
index 66186d3..e50d19d 100644
--- a/en-us/docs/dev/coding.html
+++ b/en-us/docs/dev/coding.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Code style</h2>
 <p>The source and JavaDoc of Dubbo follow below specifications:</p>
 <ul>
diff --git a/en-us/docs/dev/contract.html b/en-us/docs/dev/contract.html
index d0ae43a..e539d42 100644
--- a/en-us/docs/dev/contract.html
+++ b/en-us/docs/dev/contract.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>This document is Dubbo public agreement, we expect all extension points comply with it.</p>
 <h2>URL</h2>
 <ul>
diff --git a/en-us/docs/dev/contribution.html b/en-us/docs/dev/contribution.html
index d4c6657..2d76ed7 100644
--- a/en-us/docs/dev/contribution.html
+++ b/en-us/docs/dev/contribution.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 table {
   width: 100%;
   max-width: 65em;
diff --git a/en-us/docs/dev/design.html b/en-us/docs/dev/design.html
index e770b29..fa0ad9c 100644
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+++ b/en-us/docs/dev/design.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Overall design</h2>
 <p><img src="sources/images/dubbo-framework.jpg" alt="/dev-guide/images/dubbo-framework.jpg"></p>
 <p>Image description:</p>
diff --git a/en-us/docs/dev/implementation.html b/en-us/docs/dev/implementation.html
index 7e15944..79c0cef 100644
--- a/en-us/docs/dev/implementation.html
+++ b/en-us/docs/dev/implementation.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Initialization details</h2>
 <h3>Service parsing</h3>
 <p>Based on <code>META-INF/spring.handlers</code> config in dubbo.jar, Spring calls <code>DubboNamespaceHandler</code> when meeting dubbo namespace.</p>
diff --git a/en-us/docs/dev/impls/cache.html b/en-us/docs/dev/impls/cache.html
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 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Cache the return value, use request parameter as the key.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/cluster.html b/en-us/docs/dev/impls/cluster.html
index 9813bea..a5c15b2 100644
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@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Group service providers in a cluster, and treat them as one single provider.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/compiler.html b/en-us/docs/dev/impls/compiler.html
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 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Java compiler, used for byte code dynamic generation for RPC invocation.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/config-center.html b/en-us/docs/dev/impls/config-center.html
index 758ea2d..555b785 100644
--- a/en-us/docs/dev/impls/config-center.html
+++ b/en-us/docs/dev/impls/config-center.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Design Purpose</h2>
 <p>The key function of CC(Configuration Center) is to act as a Key-Value store. Dubbo Framework tells CC the key it care about, CC return the corresponding value.</p>
 <p>Divided by application scenarios, CC mainly undertake the following responsibilities in Dubbo Framework:</p>
diff --git a/en-us/docs/dev/impls/container.html b/en-us/docs/dev/impls/container.html
index 937c3d1..c4ba077 100644
--- a/en-us/docs/dev/impls/container.html
+++ b/en-us/docs/dev/impls/container.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Service container extension, useful for loading custom contents.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/dispatcher.html b/en-us/docs/dev/impls/dispatcher.html
index 358a7fc..23b5e2b 100644
--- a/en-us/docs/dev/impls/dispatcher.html
+++ b/en-us/docs/dev/impls/dispatcher.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Thread pool dispatch strategy.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/exchanger.html b/en-us/docs/dev/impls/exchanger.html
index 2c15e8f..b772103 100644
--- a/en-us/docs/dev/impls/exchanger.html
+++ b/en-us/docs/dev/impls/exchanger.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Exchange message between request and response on network transport layer.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/exporter-listener.html b/en-us/docs/dev/impls/exporter-listener.html
index f434034..954d100 100644
--- a/en-us/docs/dev/impls/exporter-listener.html
+++ b/en-us/docs/dev/impls/exporter-listener.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Fire events when there's any service exported.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/extension-factory.html b/en-us/docs/dev/impls/extension-factory.html
index df64d02..3d018b1 100644
--- a/en-us/docs/dev/impls/extension-factory.html
+++ b/en-us/docs/dev/impls/extension-factory.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Factory to load dubbo extensions.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/filter.html b/en-us/docs/dev/impls/filter.html
index 4a7b375..458a6d7 100644
--- a/en-us/docs/dev/impls/filter.html
+++ b/en-us/docs/dev/impls/filter.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension for intercepting the invocation for both service provider and consumer, furthermore, most of functions in dubbo are implemented base on the same mechanism. Since every time when remote method is invoked, the filter extensions will be executed too, the corresponding penalty should be considered before more filters are added.</p>
 <p>Contract:</p>
diff --git a/en-us/docs/dev/impls/introduction.html b/en-us/docs/dev/impls/introduction.html
index 97100e5..e6e3dab 100644
--- a/en-us/docs/dev/impls/introduction.html
+++ b/en-us/docs/dev/impls/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>SPI extension interface is used for system integration, it's also useful for dubbo contributor to extend dubbo functionality.</p>
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
diff --git a/en-us/docs/dev/impls/invoker-listener.html b/en-us/docs/dev/impls/invoker-listener.html
index 9021dde..3a314d4 100644
--- a/en-us/docs/dev/impls/invoker-listener.html
+++ b/en-us/docs/dev/impls/invoker-listener.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Fire event when there's any service referenced.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/load-balance.html b/en-us/docs/dev/impls/load-balance.html
index df5166e..a6b6f6b 100644
--- a/en-us/docs/dev/impls/load-balance.html
+++ b/en-us/docs/dev/impls/load-balance.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Pick one from service providers and fire the invocation.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/logger-adapter.html b/en-us/docs/dev/impls/logger-adapter.html
index 917c5f0..3c0c273 100644
--- a/en-us/docs/dev/impls/logger-adapter.html
+++ b/en-us/docs/dev/impls/logger-adapter.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension for adapting logger output</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/merger.html b/en-us/docs/dev/impls/merger.html
index 3b689dc..322e432 100644
--- a/en-us/docs/dev/impls/merger.html
+++ b/en-us/docs/dev/impls/merger.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Merge strategy for return result aggregation in group.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/monitor.html b/en-us/docs/dev/impls/monitor.html
index 4639b5b..23794a3 100644
--- a/en-us/docs/dev/impls/monitor.html
+++ b/en-us/docs/dev/impls/monitor.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension to monitor service invocation times and time taken for each service invocation.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/networker.html b/en-us/docs/dev/impls/networker.html
index caf6de3..ef5ebf1 100644
--- a/en-us/docs/dev/impls/networker.html
+++ b/en-us/docs/dev/impls/networker.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension for peer to peer network grouping.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/page.html b/en-us/docs/dev/impls/page.html
index dd073da..e9fa438 100644
--- a/en-us/docs/dev/impls/page.html
+++ b/en-us/docs/dev/impls/page.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension for page handler</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/protocol.html b/en-us/docs/dev/impls/protocol.html
index e8f4dd6..a049d36 100644
--- a/en-us/docs/dev/impls/protocol.html
+++ b/en-us/docs/dev/impls/protocol.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension to RPC protocol, hide details of remote call.</p>
 <p>Contract:</p>
diff --git a/en-us/docs/dev/impls/proxy-factory.html b/en-us/docs/dev/impls/proxy-factory.html
index 3f05900..258f194 100644
--- a/en-us/docs/dev/impls/proxy-factory.html
+++ b/en-us/docs/dev/impls/proxy-factory.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Convert <code>Invoker</code> into business interface.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/registry.html b/en-us/docs/dev/impls/registry.html
index c8ca9d3..9622112 100644
--- a/en-us/docs/dev/impls/registry.html
+++ b/en-us/docs/dev/impls/registry.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Registry extension is used for service registration and discovery.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/remoting.html b/en-us/docs/dev/impls/remoting.html
index df001b7..ea1046f 100644
--- a/en-us/docs/dev/impls/remoting.html
+++ b/en-us/docs/dev/impls/remoting.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Transportation extension for communication between server and client.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/router.html b/en-us/docs/dev/impls/router.html
index cd26930..63cc341 100644
--- a/en-us/docs/dev/impls/router.html
+++ b/en-us/docs/dev/impls/router.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Pick one from service providers and fire the invocation.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/serialize.html b/en-us/docs/dev/impls/serialize.html
index 0320114..9751f10 100644
--- a/en-us/docs/dev/impls/serialize.html
+++ b/en-us/docs/dev/impls/serialize.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension to serializing java object into byte code stream for transporting on the network, and vise versa.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/status-checker.html b/en-us/docs/dev/impls/status-checker.html
index 6e1ff76..e0cc34f 100644
--- a/en-us/docs/dev/impls/status-checker.html
+++ b/en-us/docs/dev/impls/status-checker.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension to check status of resources service depends on. This status checker can be used in both telnet status command and status page.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/telnet-handler.html b/en-us/docs/dev/impls/telnet-handler.html
index 7144561..1fe4fe3 100644
--- a/en-us/docs/dev/impls/telnet-handler.html
+++ b/en-us/docs/dev/impls/telnet-handler.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension to telnet command. All server should support telnet access for operation convenience.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/threadpool.html b/en-us/docs/dev/impls/threadpool.html
index b4bea90..f9ca23a 100644
--- a/en-us/docs/dev/impls/threadpool.html
+++ b/en-us/docs/dev/impls/threadpool.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Thread pool strategy extension for service provider. When server receives one request, it needs a thread from thread pool to execute business logic in service provider.</p>
 <h2>Extension Interface</h2>
diff --git a/en-us/docs/dev/impls/validation.html b/en-us/docs/dev/impls/validation.html
index 308c1d6..ea595ab 100644
--- a/en-us/docs/dev/impls/validation.html
+++ b/en-us/docs/dev/impls/validation.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Summary</h2>
 <p>Extension for parameter validation.</p>
 <h2>Extension Inteface</h2>
diff --git a/en-us/docs/dev/introduction.html b/en-us/docs/dev/introduction.html
index dcd8239..c099a2e 100644
--- a/en-us/docs/dev/introduction.html
+++ b/en-us/docs/dev/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
 	<script src="https://f.alicdn.com/react/15.4.1/react-dom.min.js"></script>
 	<script>
diff --git a/en-us/docs/dev/principals/code-detail.html b/en-us/docs/dev/principals/code-detail.html
index 26e9dab..2f3a70d 100644
--- a/en-us/docs/dev/principals/code-detail.html
+++ b/en-us/docs/dev/principals/code-detail.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <blockquote>
 <p><a href="http://javatar.iteye.com/blog/1056664">http://javatar.iteye.com/blog/1056664</a></p>
 </blockquote>
diff --git a/en-us/docs/dev/principals/configuration.html b/en-us/docs/dev/principals/configuration.html
index 901395d..cc6ed30 100644
--- a/en-us/docs/dev/principals/configuration.html
+++ b/en-us/docs/dev/principals/configuration.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <blockquote>
 <p><a href="http://javatar.iteye.com/blog/949527">http://javatar.iteye.com/blog/949527</a></p>
 </blockquote>
diff --git a/en-us/docs/dev/principals/dummy.html b/en-us/docs/dev/principals/dummy.html
index df95dc2..ab6303e 100644
--- a/en-us/docs/dev/principals/dummy.html
+++ b/en-us/docs/dev/principals/dummy.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <blockquote>
 <p><a href="http://javatar.iteye.com/blog/804187">http://javatar.iteye.com/blog/804187</a></p>
 </blockquote>
diff --git a/en-us/docs/dev/principals/expansibility.html b/en-us/docs/dev/principals/expansibility.html
index 08bb7ab..96de334 100644
--- a/en-us/docs/dev/principals/expansibility.html
+++ b/en-us/docs/dev/principals/expansibility.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <blockquote>
 <p><a href="http://javatar.iteye.com/blog/690845">http://javatar.iteye.com/blog/690845</a></p>
 </blockquote>
diff --git a/en-us/docs/dev/principals/extension.html b/en-us/docs/dev/principals/extension.html
index 013a4b8..bc7d270 100644
--- a/en-us/docs/dev/principals/extension.html
+++ b/en-us/docs/dev/principals/extension.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <blockquote>
 <p><a href="http://javatar.iteye.com/blog/1041832">http://javatar.iteye.com/blog/1041832</a></p>
 </blockquote>
diff --git a/en-us/docs/dev/principals/general-knowledge.html b/en-us/docs/dev/principals/general-knowledge.html
index 83fef24..7eaa0b5 100644
--- a/en-us/docs/dev/principals/general-knowledge.html
+++ b/en-us/docs/dev/principals/general-knowledge.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <blockquote>
 <p><a href="http://javatar.iteye.com/blog/706098">http://javatar.iteye.com/blog/706098</a></p>
 </blockquote>
diff --git a/en-us/docs/dev/principals/introduction.html b/en-us/docs/dev/principals/introduction.html
index 017ba78..8987eb1 100644
--- a/en-us/docs/dev/principals/introduction.html
+++ b/en-us/docs/dev/principals/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The design principles in this chapter are taken from a series of articles published by Liang Fei on javaeye.</p>
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
diff --git a/en-us/docs/dev/principals/robustness.html b/en-us/docs/dev/principals/robustness.html
index e8b0dbe..183e128 100644
--- a/en-us/docs/dev/principals/robustness.html
+++ b/en-us/docs/dev/principals/robustness.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <blockquote>
 <p><a href="http://oldratlee.com/380/tech/java/robustness-of-implement.html">http://oldratlee.com/380/tech/java/robustness-of-implement.html</a></p>
 </blockquote>
diff --git a/en-us/docs/dev/release.html b/en-us/docs/dev/release.html
index a741285..d129165 100644
--- a/en-us/docs/dev/release.html
+++ b/en-us/docs/dev/release.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p><strong>New feature development</strong> and <strong>stability improvement</strong> are equally important to product. But adding new features will affect stability, dubbo uses the following version development pattern to achieve a good balance.</p>
 <h2>Two versions evolving at the same time</h2>
 <ul>
diff --git a/en-us/docs/developers/committer-guide/apache-dubbo-page_dev.html b/en-us/docs/developers/committer-guide/apache-dubbo-page_dev.html
index be40c81..7f2c39f 100644
--- a/en-us/docs/developers/committer-guide/apache-dubbo-page_dev.html
+++ b/en-us/docs/developers/committer-guide/apache-dubbo-page_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Apache has an official website that maintains information about all incubation projects.
 Each incubation project has an information page under this website.
 Dubbo's information page address is <a href="https://incubator.apache.org/projects/dubbo.html">https://incubator.apache.org/projects/dubbo.html</a>.</p>
diff --git a/en-us/docs/developers/committer-guide/label-an-issue-guide_dev.html b/en-us/docs/developers/committer-guide/label-an-issue-guide_dev.html
index 9e0e920..9c73cb3 100644
--- a/en-us/docs/developers/committer-guide/label-an-issue-guide_dev.html
+++ b/en-us/docs/developers/committer-guide/label-an-issue-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>If you are handling an issue, remember to <strong>mark the issue cearly with one or more labels</strong> whenever you think it's meaningful. With labels on, other developers can easily recognize problems, classify them or track progress.</p>
 <p>For issues or pull requests that need coding and further version release to fix, you should always <strong>mark it with a <a href="https://github.com/apache/dubbo/milestones">milestone</a></strong>.</p>
 <p>Some frequently used labels:</p>
diff --git a/en-us/docs/developers/committer-guide/new-committer-guide_dev.html b/en-us/docs/developers/committer-guide/new-committer-guide_dev.html
index fe28c6e..05c0a2f 100644
--- a/en-us/docs/developers/committer-guide/new-committer-guide_dev.html
+++ b/en-us/docs/developers/committer-guide/new-committer-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>First: How to become a committer</h2>
 <h3>Initial committers at the project incubator stage</h3>
 <p>At the project incubator stage, there will be an initial committers list in the proposal of the incubator project. Confirm that you are one of the initial committers. After the vote is passed in the Apache incubator community, these committers can start preparing their account. See <a href="https://wiki.apache.org/incubator/">incubator wiki</a> for details.</p>
diff --git a/en-us/docs/developers/committer-guide/release-guide_dev.html b/en-us/docs/developers/committer-guide/release-guide_dev.html
index b2a36f8..1a9a0e0 100644
--- a/en-us/docs/developers/committer-guide/release-guide_dev.html
+++ b/en-us/docs/developers/committer-guide/release-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>In general, Source Release is the key and the required content of Apache. But Binary Release is optional, Dubbo can choose whether to release binary packages to the Apache repository or to the Maven central repository.</p>
 <p>Please refer to the following links for more information on ASF's release guide:</p>
 <ul>
diff --git a/en-us/docs/developers/committer-guide/website-guide_dev.html b/en-us/docs/developers/committer-guide/website-guide_dev.html
index 9170264..9849fa1 100644
--- a/en-us/docs/developers/committer-guide/website-guide_dev.html
+++ b/en-us/docs/developers/committer-guide/website-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <ol>
 <li>The website repository of Apache Dubbo is <a href="https://github.com/apache/dubbo-website">https://github.com/apache/dubbo-website</a></li>
 <li>After building the website, it'll be published to <a href="http://dubbo.apache.org">dubbo.apache.org</a> automatically, you can also trigger it manually via <a href="https://selfserve.apache.org">https://selfserve.apache.org</a> (need to login with Apache account)</li>
diff --git a/en-us/docs/developers/contributor-guide/become-a-committer_dev.html b/en-us/docs/developers/contributor-guide/become-a-committer_dev.html
index fc63bbf..87de566 100644
--- a/en-us/docs/developers/contributor-guide/become-a-committer_dev.html
+++ b/en-us/docs/developers/contributor-guide/become-a-committer_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Anyone can be a contributor to an Apache project. Being a contributor simply means that you take an interest in the project and contribute in some way, ranging from asking sensible questions (which documents the project and provides feedback to developers) through to providing new features as patches.</p>
 <p>If you become a valuable contributor to the project you may well be invited to become a committer. Committer is a term used at the ASF to signify someone who is committed to a particular project. It brings with it the privilege of write access to the project repository and resources.</p>
 <p>In Dubbo community, if a committers who have earned even more merit, can be invited to be a part of the Project Management Committee (PMC).</p>
diff --git a/en-us/docs/developers/contributor-guide/cla-signing-guide_dev.html b/en-us/docs/developers/contributor-guide/cla-signing-guide_dev.html
index b2c1cd0..050295e 100644
--- a/en-us/docs/developers/contributor-guide/cla-signing-guide_dev.html
+++ b/en-us/docs/developers/contributor-guide/cla-signing-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>You are required to sign the Apache ICLA under the following condition:</p>
 <ul>
 <li>You have made lots of contribution to Dubbo before Dubbo get donated to Apache, and you haven't sign the Alibaba-CLA before.</li>
diff --git a/en-us/docs/developers/contributor-guide/dubbo-extension-guide_dev.html b/en-us/docs/developers/contributor-guide/dubbo-extension-guide_dev.html
index b646151..4e90b9b 100644
--- a/en-us/docs/developers/contributor-guide/dubbo-extension-guide_dev.html
+++ b/en-us/docs/developers/contributor-guide/dubbo-extension-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo Use microkernel + plugin design pattern. Microkernel is only responsible for assembling plugins, the functions of Dubbo are implemented by extension points(plugins), which means that all functions of Dubbo can be replaced by user customized extension.</p>
 <h2>Dubbo Ecosystem</h2>
 <p>We recommend you to put extension to Dubbo <a href="https://github.com/dubbo">ecosystem</a>. Using this pattern will keep the core repository cleaner and decrease the maintains work. With less code also speed up core repository build process.</p>
diff --git a/en-us/docs/developers/contributor-guide/mailing-list-subscription-guide_dev.html b/en-us/docs/developers/contributor-guide/mailing-list-subscription-guide_dev.html
index dbe78fc..e69e890 100644
--- a/en-us/docs/developers/contributor-guide/mailing-list-subscription-guide_dev.html
+++ b/en-us/docs/developers/contributor-guide/mailing-list-subscription-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The Dubbo developer mailing list (<a href="mailto:dev@dubbo.apache.org">dev@dubbo.apache.org</a>) for Apache Incubator has been established, please feel free to subscribe and refer to [^1] for more details.</p>
 <p>You can also view <a href="https://lists.apache.org/list.html?dev@dubbo.apache.org">the archive of the mailing list</a></p>
 <p>Here is a brief guide specific to Dubbo:</p>
diff --git a/en-us/docs/developers/contributor-guide/new-contributor-guide_dev.html b/en-us/docs/developers/contributor-guide/new-contributor-guide_dev.html
index 6a393fb..cd5a4d3 100644
--- a/en-us/docs/developers/contributor-guide/new-contributor-guide_dev.html
+++ b/en-us/docs/developers/contributor-guide/new-contributor-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>This is a guide for new comers who wants to contribute to Dubbo.</p>
 <h3>Subscribe to the mailing list</h3>
 <p>The mailing list is the recommended way for discussing almost anything that related to Dubbo. Please refer to this <a href="https://github.com/apache/dubbo/issues/1393">issue</a> for detailed documentation on how to subscribe.</p>
diff --git a/en-us/docs/developers/contributor-guide/reporting-security-issues_dev.html b/en-us/docs/developers/contributor-guide/reporting-security-issues_dev.html
index 87fc736..adb9752 100644
--- a/en-us/docs/developers/contributor-guide/reporting-security-issues_dev.html
+++ b/en-us/docs/developers/contributor-guide/reporting-security-issues_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The Apache Software Foundation takes a rigorous standpoint in annihilating the security issues in its software projects. Apache Dubbo is highly sensitive and forthcoming to issues pertaining to its features and functionality.</p>
 <h2>REPORTING VULNERABILITY</h2>
 <p>If you have apprehensions regarding Dubbo's security or you discover vulnerability or potential threat, don’t hesitate to get in touch with the Apache Dubbo Security Team by dropping a mail at <a href="mailto:security@dubbo.apache.org">security@dubbo.apache.org</a>. In the mail, specify the description of the issue or potential threat. You are also urged to recommend the way to reproduce and replicate the issue. The Dubbo community will get back to you after assessing and analysing th [...]
diff --git a/en-us/docs/developers/contributor-guide/software-donation-guide_dev.html b/en-us/docs/developers/contributor-guide/software-donation-guide_dev.html
index 82915e3..2b2ac7b 100644
--- a/en-us/docs/developers/contributor-guide/software-donation-guide_dev.html
+++ b/en-us/docs/developers/contributor-guide/software-donation-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Before you go through this guide, make sure you have confirmed with PMC that a SGA is actually needed.</p>
 <p>If you are donating significant amount of code or documentation to Apache Dubbo , you will be required to sign a <a href="https://www.apache.org/licenses/#grants">Software Grant</a> before your code/doc could be merged.</p>
 <h4>Steps</h4>
diff --git a/en-us/docs/developers/contributor-guide/test-coverage-guide_dev.html b/en-us/docs/developers/contributor-guide/test-coverage-guide_dev.html
index e7190c7..754629b 100644
--- a/en-us/docs/developers/contributor-guide/test-coverage-guide_dev.html
+++ b/en-us/docs/developers/contributor-guide/test-coverage-guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h3>1.The benefits of unit testing</h3>
 <ul>
 <li>Unit test code can help everyone to go into details and understand the function of the code.</li>
diff --git a/en-us/docs/developers/developers_dev.html b/en-us/docs/developers/developers_dev.html
index bbfa11a..3d2f519 100644
--- a/en-us/docs/developers/developers_dev.html
+++ b/en-us/docs/developers/developers_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>This page shows Dubbo developers. Please file PR to add or change items.</p>
 <h3>Committers</h3>
 <table>
diff --git a/en-us/docs/developers/guide_dev.html b/en-us/docs/developers/guide_dev.html
index 0907a75..a9bad28 100644
--- a/en-us/docs/developers/guide_dev.html
+++ b/en-us/docs/developers/guide_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo is released under the non-restrictive Apache 2.0 license, and follows a very standard Github development process, using Github tracker for issues and merging pull requests into master. If you want to contribute even something trivial please do not hesitate, but follow the guidelines below.</p>
 <h3>Sign the Contributor License Agreement</h3>
 <p>Before we accept a non-trivial patch or pull request we will need you to sign the Contributor License Agreement. Signing the contributor’s agreement does not grant anyone commit rights to the main repository, but it does mean that we can accept your contributions, and you will get an author credit if we do. Active contributors might be asked to join the core team, and given the ability to merge pull requests.</p>
diff --git a/en-us/docs/developers/user-guide/faq_dev.html b/en-us/docs/developers/user-guide/faq_dev.html
index ff8b18f..1b7a09b 100644
--- a/en-us/docs/developers/user-guide/faq_dev.html
+++ b/en-us/docs/developers/user-guide/faq_dev.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h3>Where is dubbo-admin?</h3>
 <p>dubbo-admin has been moved from core repository to <a href="https://github.com/apache/dubbo-admin">https://github.com/apache/dubbo-admin</a> since 2.6.1</p>
 <h3>Which version should I choose?</h3>
diff --git a/en-us/docs/user/README.html b/en-us/docs/user/README.html
index 5d8e0bb..e4133de 100644
--- a/en-us/docs/user/README.html
+++ b/en-us/docs/user/README.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The dubbo cookbook, covering almost all features of dubbo framework.</p>
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
diff --git a/en-us/docs/user/SUMMARY.html b/en-us/docs/user/SUMMARY.html
index b8919e6..8a894f7 100644
--- a/en-us/docs/user/SUMMARY.html
+++ b/en-us/docs/user/SUMMARY.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <ul>
 <li><a href="./preface/index.md">1 Preface</a>
 <ul>
diff --git a/en-us/docs/user/benchmark-tool.html b/en-us/docs/user/benchmark-tool.html
index 175058c..abe4e5d 100644
--- a/en-us/docs/user/benchmark-tool.html
+++ b/en-us/docs/user/benchmark-tool.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <ul>
 <li>download: git clone <a href="https://github.com/apache/dubbo.git">https://github.com/apache/dubbo.git</a></li>
 <li>compile benchmark: cd dubbo/dubbo-test/dubbo-test-benchmark; mvn clean install</li>
diff --git a/en-us/docs/user/best-practice.html b/en-us/docs/user/best-practice.html
index 2763f08..c00dd83 100644
--- a/en-us/docs/user/best-practice.html
+++ b/en-us/docs/user/best-practice.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Modularization</h2>
 <p>It is recommended to put service interfaces, service models, service exceptions, and so on in the API package,Because the service model and exception are part of the API, it is also in conformity with the modularization principle:Reusing the publish equivalence principle (REP) and the Common Reuse Principle (CRP).</p>
 <p>If you need, you can also consider placing a spring reference configuration in the API package, so that the user can only use the configuration in the spring loading process, and the configuration suggestion is placed in the package directory of the module, so as not to conflict, eg:<code>com/alibaba/china/xxx/dubbo-reference.xml</code>。</p>
diff --git a/en-us/docs/user/capacity-plan.html b/en-us/docs/user/capacity-plan.html
index 309b9f7..586ed4e 100644
--- a/en-us/docs/user/capacity-plan.html
+++ b/en-us/docs/user/capacity-plan.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The following data for reference:</p>
 <h2>Use member service project of Dubbo</h2>
 <ul>
diff --git a/en-us/docs/user/configuration/annotation.html b/en-us/docs/user/configuration/annotation.html
index a107d4b..8a47116 100644
--- a/en-us/docs/user/configuration/annotation.html
+++ b/en-us/docs/user/configuration/annotation.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Requires<code>2.6.3</code> or higher
 click here to view the <a href="https://github.com/apache/dubbo-samples/tree/master/dubbo-samples-annotation">complete sample</a></p>
 <h2>Provider Side</h2>
diff --git a/en-us/docs/user/configuration/api.html b/en-us/docs/user/configuration/api.html
index 8bfdc50..fa2fcbe 100644
--- a/en-us/docs/user/configuration/api.html
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@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>All API properties have counterparts in XML, see <a href="../references/xml/introduction.md">XML References</a> for details. For example <code>ApplicationConfig.setName(&quot;xxx&quot;)</code> equals to  <code>&lt;dubbo:application name=&quot;xxx&quot; /&gt;</code> <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup></p>
 <h2>Provider Side</h2>
 <pre><code class="language-java"><span class="hljs-keyword">import</span> org.apache.dubbo.rpc.config.ApplicationConfig;
diff --git a/en-us/docs/user/configuration/index.html b/en-us/docs/user/configuration/index.html
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 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
 	<script src="https://f.alicdn.com/react/15.4.1/react-dom.min.js"></script>
diff --git a/en-us/docs/user/configuration/properties.html b/en-us/docs/user/configuration/properties.html
index 13a6e87..9a4c798 100644
--- a/en-us/docs/user/configuration/properties.html
+++ b/en-us/docs/user/configuration/properties.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>If your application is simple enough, say, you do not need multi-registries or multi-protocols, and you want to share configuration among Spring containers. You can use <code>dubbo.properties</code> as default configuration.</p>
 <p>Dubbo will load dubbo.properties under the root of classpath automatically, you can also specify the path for loading this file by using JVM parameter: <code>-Ddubbo.properties.file=xxx.properties</code>.</p>
 <h2>Mapping Rules</h2>
diff --git a/en-us/docs/user/configuration/translate configuration-load-process.html b/en-us/docs/user/configuration/translate configuration-load-process.html
index 2ec07df..4331122 100644
--- a/en-us/docs/user/configuration/translate configuration-load-process.html	
+++ b/en-us/docs/user/configuration/translate configuration-load-process.html	
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>This document focuses on <strong>how the Dubbo framework collects the required configuration</strong> (including application configuration, registry configuration, service configuration, etc.) <strong>during the application startup phase</strong> to complete the process of service exposure and reference.</p>
 <p>Depending on how you drive it (such as Spring or naked API programming), the configuration form will certainly vary, for detail please refer to <a href="./xml.md">XML Configuration</a>, <a href="./annotation.md">Annotation Configuration</a> and <a href="./api.md">API Configuration</a>. In addition to the differences in peripheral drivers, Dubbo's configuration reads generally follow the following principles:</p>
 <ol>
diff --git a/en-us/docs/user/configuration/xml.html b/en-us/docs/user/configuration/xml.html
index e085a0c..c276a39 100644
--- a/en-us/docs/user/configuration/xml.html
+++ b/en-us/docs/user/configuration/xml.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>About the XML configuration items, see:<a href="../references/xml/introduction.md">XML References</a>. If you prefer use API directly instead of using Spring, see <a href="./api.md">API Configuration</a>. Want a example of how to use configuration, see <a href="../quick-start.md">Quick Start</a>。</p>
 <h2>provider.xml demo</h2>
 <pre><code class="language-xml"><span class="hljs-meta">&lt;?xml version="1.0" encoding="UTF-8"?&gt;</span>
diff --git a/en-us/docs/user/coveragence.html b/en-us/docs/user/coveragence.html
index 14ddd22..097e594 100644
--- a/en-us/docs/user/coveragence.html
+++ b/en-us/docs/user/coveragence.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <ul>
 <li>v2.0   Codecov report , Statistics since  2017-12-29
 The test coverage is : <a href="https://codecov.io/gh/apache/dubbo"><img src="https://codecov.io/gh/apache/dubbo/branch/master/graph/badge.svg" alt="codecov"></a> , we can get the report in <a href="https://codecov.io/gh/apache/dubbo">https://codecov.io/gh/apache/dubbo</a></li>
diff --git a/en-us/docs/user/demos/accesslog.html b/en-us/docs/user/demos/accesslog.html
index 69ba14a..4097aae 100644
--- a/en-us/docs/user/demos/accesslog.html
+++ b/en-us/docs/user/demos/accesslog.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>If you want to logging the access information for each provide service,you can turn on the <code>accesslog</code> switch,which like the access log of <code>Apache</code>.</p>
 <p><strong>Note:</strong>
 The size of the access log maybe too much,please check the disk capacity.
diff --git a/en-us/docs/user/demos/async-call-deprecated.html b/en-us/docs/user/demos/async-call-deprecated.html
index 346be58..48c8ebe 100644
--- a/en-us/docs/user/demos/async-call-deprecated.html
+++ b/en-us/docs/user/demos/async-call-deprecated.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 
 NIO-based non-blocking parallel call, the client does not need to start multi-threading to complete multiple remote services in parallel, and the relative multi-threading overhead is small.。 [^1]
 
diff --git a/en-us/docs/user/demos/async-call.html b/en-us/docs/user/demos/async-call.html
index f27b407..525e8ff 100644
--- a/en-us/docs/user/demos/async-call.html
+++ b/en-us/docs/user/demos/async-call.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>As dubbo is based on a non-blocking NIO network layer, the client can start parallel call to multiple remote services without explicitly starting mulithreads, which costs relatively fewer resources.</p>
 <p><img src="../sources/images/future.jpg" alt="/user-guide/images/future.jpg"></p>
 <p>You can config at <code>consumer.xml</code> for setup asynchronous call some remote service.</p>
diff --git a/en-us/docs/user/demos/async-execute-on-provider.html b/en-us/docs/user/demos/async-execute-on-provider.html
index c5746fa..a5007c5 100644
--- a/en-us/docs/user/demos/async-execute-on-provider.html
+++ b/en-us/docs/user/demos/async-execute-on-provider.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The asynchronous execute on provider switches the blocked service from the internal thread pool of Dubbo to the service custom thread to avoid over-occupation of the Dubbo thread pool, which helps to avoid mutual influence between different services.Asynchronous-Execution is not conducive to saving resources or improving RPC responsiveness, because if business execution needs to be blocked, there is always a thread to be responsible for execution.</p>
 <blockquote>
 <p>Note: Asynchronous execute on provider and asynchronous execute on consumer are independent of each other. You can configure ends of any orthogonal combination.</p>
diff --git a/en-us/docs/user/demos/attachment.html b/en-us/docs/user/demos/attachment.html
index 9813f0b..68d421f 100644
--- a/en-us/docs/user/demos/attachment.html
+++ b/en-us/docs/user/demos/attachment.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>You can implicitly pass parameters between service consumers and providers via <code>setAttachment</code> and<code>getAttachment</code> on <code>RpcContext</code>.
 <img src="../sources/images/context.png" alt="/user-guide/images/context.png"></p>
 <h2>Set the implicit parameters at service consumer side</h2>
diff --git a/en-us/docs/user/demos/callback-parameter.html b/en-us/docs/user/demos/callback-parameter.html
index f23bdd4..cf8c1a5 100644
--- a/en-us/docs/user/demos/callback-parameter.html
+++ b/en-us/docs/user/demos/callback-parameter.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The parameter callback is the same as calling a local callback or listener, just declare which parameter is a callback type in Spring's configuration file, and Dubbo will generate a reverse proxy based on the long connection so that client logic can be called from the server.Can ref to <a href="https://github.com/dubbo/dubbo-samples/tree/master/dubbo-samples-callback">Sample code in the dubbo project</a>.</p>
 <h2>Example of service interface</h2>
 <h3>CallbackService.java</h3>
diff --git a/en-us/docs/user/demos/concurrency-control.html b/en-us/docs/user/demos/concurrency-control.html
index 5009ce0..095fb9a 100644
--- a/en-us/docs/user/demos/concurrency-control.html
+++ b/en-us/docs/user/demos/concurrency-control.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Example of configuration</h2>
 <ul>
 <li>Example 1: Control the concurrency of all method for a specified service interface at server-side</li>
diff --git a/en-us/docs/user/demos/config-connections.html b/en-us/docs/user/demos/config-connections.html
index b81a96b..1640b8b 100644
--- a/en-us/docs/user/demos/config-connections.html
+++ b/en-us/docs/user/demos/config-connections.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Control connections at server-side</h2>
 <p>Limit server-side accept to no more than 10 connections</p>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dubbo:provider</span> <span class="hljs-attr">protocol</span>=<span class="hljs-string">"dubbo"</span> <span class="hljs-attr">accepts</span>=<span class="hljs-string">"10"</span> /&gt;</span>
diff --git a/en-us/docs/user/demos/config-rule.html b/en-us/docs/user/demos/config-rule.html
index dae451c..73188b7 100644
--- a/en-us/docs/user/demos/config-rule.html
+++ b/en-us/docs/user/demos/config-rule.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Write then dynamic configuration to the registry center,This feature is usually done by the monitoring center or the center's page.</p>
 <pre><code class="language-java">RegistryFactory registryFactory = ExtensionLoader.getExtensionLoader(RegistryFactory.class).getAdaptiveExtension();
 Registry registry = registryFactory.getRegistry(URL.valueOf(<span class="hljs-string">"zookeeper://10.20.153.10:2181"</span>));
diff --git a/en-us/docs/user/demos/context.html b/en-us/docs/user/demos/context.html
index 5a5467e..445f256 100644
--- a/en-us/docs/user/demos/context.html
+++ b/en-us/docs/user/demos/context.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>All environment information of during the current call will put into the context,and all configuration information will convert the parameters of <code>URL</code> instance,Ref to the column of <strong>URL parameters</strong> at the <a href="../references/xml/introduction.md">schema configuration reference book</a></p>
 <p><code>RpcContext</code> is a temporary status recorder of <code>ThreadLocal</code>,when accept <code>RPC</code> request or send <code>RPC</code> request,The <code>RpcContext</code> will be  changed.Such as: <code>A</code> call <code>B</code> and <code>B</code> call <code>C</code>. On <code>B</code> machine,before <code>B</code> call <code>C</code>,the <code>RpcContext</code> will record the information of <code>A</code> call <code>B</code>.After <code>B</code> call <code>C</code>,the  [...]
 <h2>At service consumer</h2>
diff --git a/en-us/docs/user/demos/delay-publish.html b/en-us/docs/user/demos/delay-publish.html
index 464c8fe..ee29135 100644
--- a/en-us/docs/user/demos/delay-publish.html
+++ b/en-us/docs/user/demos/delay-publish.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>If your services need time to warm up, such as: initialization cache or another reference resources has to be ready. You can use the delay feature to delay publishing services. We fine-tuned the service delay exposure logic in Dubbo 2.6.5, delaying the countdown of services that require delayed exposure until Spring initialization is complete. You won't be aware of this change while using Dubbo, so please be assured that use.</p>
 <h2>Prior to Dubbo-2.6.5</h2>
 <h3>Delay five second publish</h3>
diff --git a/en-us/docs/user/demos/distributed-transaction.html b/en-us/docs/user/demos/distributed-transaction.html
index e17b389..a5bd79e 100644
--- a/en-us/docs/user/demos/distributed-transaction.html
+++ b/en-us/docs/user/demos/distributed-transaction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Distributed transactions are based on the JTA / XA specification(this feature has not yet been implemented)</p>
 <p>Two-phase commit:</p>
 <p><img src="../sources/images/jta-xa.jpg" alt="/user-guide/images/jta-xa.jpg"></p>
diff --git a/en-us/docs/user/demos/dump.html b/en-us/docs/user/demos/dump.html
index 4f7c799..2392d77 100644
--- a/en-us/docs/user/demos/dump.html
+++ b/en-us/docs/user/demos/dump.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>When the business thread pool is full, we need to know what resources/conditions are waiting for the thread , to find the bottleneck point of the system or abnormal point. <code>dubbo</code> automatically export thread stack through <code>Jstack</code> to keep the scene for easy to troubleshoot the problem.</p>
 <p>Default policy:</p>
 <ul>
diff --git a/en-us/docs/user/demos/echo-service.html b/en-us/docs/user/demos/echo-service.html
index e334558..1fb0977 100644
--- a/en-us/docs/user/demos/echo-service.html
+++ b/en-us/docs/user/demos/echo-service.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Echo testing is used for check the service is available,Echo testing is performed according to the normal request flow and is able to test whether the entire call is unobstructed and can be used for monitoring.</p>
 <p>All the services will be automatically implemented <code>EchoService</code> interface,just cast any service reference to <code>EchoService</code> to use it.</p>
 <p>Spring configuration:</p>
diff --git a/en-us/docs/user/demos/events-notify.html b/en-us/docs/user/demos/events-notify.html
index 78db7af..13179e5 100644
--- a/en-us/docs/user/demos/events-notify.html
+++ b/en-us/docs/user/demos/events-notify.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Before calling, after calling, when an exception occurs,will trigger <code>oninvoke</code>, <code>onreturn</code>, <code>onthrow</code> events.You can configure which method to notify when an event occurs.</p>
 <h2>Service Interface</h2>
 <pre><code class="language-java"><span class="hljs-class"><span class="hljs-keyword">interface</span> <span class="hljs-title">IDemoService</span> </span>{
diff --git a/en-us/docs/user/demos/explicit-target.html b/en-us/docs/user/demos/explicit-target.html
index c4b836f..7eea3b6 100644
--- a/en-us/docs/user/demos/explicit-target.html
+++ b/en-us/docs/user/demos/explicit-target.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>In the development and testing environment, it is often necessary to bypass the registry and test only designated service providers. In this case, point-to-point direct connection may be required, and the service provider will ignore the list of provider registration providers. The interface A configure Point-to-point, does not affect the B interface to obtain a list from the registry.</p>
 <p><img src="../sources/images/dubbo-directly.jpg" alt="/user-guide/images/dubbo-directly.jpg"></p>
 <h2>Configure with XML</h2>
diff --git a/en-us/docs/user/demos/fault-tolerent-strategy.html b/en-us/docs/user/demos/fault-tolerent-strategy.html
index 9ffcc46..ed84a97 100644
--- a/en-us/docs/user/demos/fault-tolerent-strategy.html
+++ b/en-us/docs/user/demos/fault-tolerent-strategy.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo offers a variety of fault-tolerant scenarios when a cluster call fails, with a default failover retry.</p>
 <p><img src="../sources/images/cluster.jpg" alt="cluster"></p>
 <p>The relationship between nodes:</p>
diff --git a/en-us/docs/user/demos/generic-reference.html b/en-us/docs/user/demos/generic-reference.html
index 62b1344..455924c 100644
--- a/en-us/docs/user/demos/generic-reference.html
+++ b/en-us/docs/user/demos/generic-reference.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Generic invocation is mainly used when the client does not have API interface or model class,  all POJOs in parameters and return values are represented by <code>Map</code>.Commonly used for framework integration such as: implementing a common service testing framework, all service implementations can be invoked via <code>GenericService</code>.</p>
 <h2>Use generic invocation via Spring</h2>
 <p>Declared in the Spring configuration file <code>generic =&quot; true &quot;</code>:</p>
diff --git a/en-us/docs/user/demos/generic-service.html b/en-us/docs/user/demos/generic-service.html
index f938bfd..319ff54 100644
--- a/en-us/docs/user/demos/generic-service.html
+++ b/en-us/docs/user/demos/generic-service.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The implementation of the generic interface is mainly used when there is no API interface and model class on the server side. All POJOs in the parameters and return values are represented by the Map and are usually used for framework integration. For example, to implement a universal remote service Mock framework, handle all service requests by implementing the GenericService interface.</p>
 <p>In Java code, implement <code>GenericService</code> interface:</p>
 <pre><code class="language-java"><span class="hljs-keyword">package</span> com.foo;
diff --git a/en-us/docs/user/demos/graceful-shutdown.html b/en-us/docs/user/demos/graceful-shutdown.html
index b792a45..4b68027 100644
--- a/en-us/docs/user/demos/graceful-shutdown.html
+++ b/en-us/docs/user/demos/graceful-shutdown.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo is graceful shutdown through the <code>ShutdownHook</code> of the JDK, so graceful shutdowns are not performed if you force shutdown the command, such as <code>kill -9 PID</code>, and will only be executed if <code>kill PID</code> is passed.</p>
 <h2>Howto</h2>
 <h3>Service provider</h3>
diff --git a/en-us/docs/user/demos/group-merger.html b/en-us/docs/user/demos/group-merger.html
index 03fd659..cd3d2b1 100644
--- a/en-us/docs/user/demos/group-merger.html
+++ b/en-us/docs/user/demos/group-merger.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>According to the group to invoke server and return the merge result <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup>, such as the menu service, the same interface, but there are a variety of implementations, using group distinction, consumers call each group and get the results, the merger can merge the resules, so that you can achieve aggregation Menu Item.</p>
 <p>Related code can refer to <a href="https://github.com/apache/dubbo-samples/tree/master/dubbo-samples-merge">dubbo project example</a></p>
 <h2>Configuration</h2>
diff --git a/en-us/docs/user/demos/hostname-binding.html b/en-us/docs/user/demos/hostname-binding.html
index fc47489..fcf165d 100644
--- a/en-us/docs/user/demos/hostname-binding.html
+++ b/en-us/docs/user/demos/hostname-binding.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Lookup order</h2>
 <p>Default host IP lookup order:</p>
 <ul>
diff --git a/en-us/docs/user/demos/index.html b/en-us/docs/user/demos/index.html
index 7ec5bd1..c267df2 100644
--- a/en-us/docs/user/demos/index.html
+++ b/en-us/docs/user/demos/index.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
 	<script src="https://f.alicdn.com/react/15.4.1/react-dom.min.js"></script>
diff --git a/en-us/docs/user/demos/introduction.html b/en-us/docs/user/demos/introduction.html
index ef4f3e4..68d8936 100644
--- a/en-us/docs/user/demos/introduction.html
+++ b/en-us/docs/user/demos/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p><img src="../sources/images/check.gif" alt="warning">To complete run, please see:<a href="quickstart.md">Quickstart</a>, here just lists the configuration of various scenarios
 <img src="../sources/images/check.gif" alt="warning">The following examples are all based on Spring configuration:<a href="../configuration/xml.md">Xml configuration</a> for reference, if you do not want to use Spring, but want to be use it via the directly API, please see:<a href="../configuration/api.md">API configuration</a></p>
 </blockquote>
diff --git a/en-us/docs/user/demos/lazy-connect.html b/en-us/docs/user/demos/lazy-connect.html
index 3b8b5f4..458a5c0 100644
--- a/en-us/docs/user/demos/lazy-connect.html
+++ b/en-us/docs/user/demos/lazy-connect.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Lazy connect can reduce the number of keep-alive connections. When a call is initiated, create a keep-alive connection.<sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup></p>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dubbo:protocol</span> <span class="hljs-attr">name</span>=<span class="hljs-string">"dubbo"</span> <span class="hljs-attr">lazy</span>=<span class="hljs-string">"true"</span> /&gt;</span>
 </code></pre>
diff --git a/en-us/docs/user/demos/loadbalance.html b/en-us/docs/user/demos/loadbalance.html
index b67b65c..0f2c92c 100644
--- a/en-us/docs/user/demos/loadbalance.html
+++ b/en-us/docs/user/demos/loadbalance.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo offers a number of balancing strategies for cluster load balancing, which defaults to <code>random</code>.</p>
 <p>You can extend the load balancing strategy by yourself, see: <a href="../../dev/impls/load-balance.md">LoadBalance extension</a></p>
 <h2>LoadBalance strategy</h2>
diff --git a/en-us/docs/user/demos/local-call.html b/en-us/docs/user/demos/local-call.html
index e1b0014..c49dc66 100644
--- a/en-us/docs/user/demos/local-call.html
+++ b/en-us/docs/user/demos/local-call.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The local call uses the <code>injvm</code> protocol, a pseudo-protocol that does not turn on the port, does not initiate remote calls, is directly associated within the JVM, but executes the Dubbo Filter chain.</p>
 <h2>Configuration</h2>
 <p>Configure <code>injvm</code> protocol</p>
diff --git a/en-us/docs/user/demos/local-mock.html b/en-us/docs/user/demos/local-mock.html
index 0114c29..5e71466 100644
--- a/en-us/docs/user/demos/local-mock.html
+++ b/en-us/docs/user/demos/local-mock.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Local mock <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> is usually used for service downgrade, such as a verification service, the client does not throw an exception when the service provider hangs up all the time, but returns the authorization failed through the Mock data.</p>
 <p>Configured in the spring configuration file as follows:</p>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dubbo:reference</span> <span class="hljs-attr">interface</span>=<span class="hljs-string">"com.foo.BarService"</span> <span class="hljs-attr">mock</span>=<span class="hljs-string">"true"</span> /&gt;</span>
diff --git a/en-us/docs/user/demos/local-stub.html b/en-us/docs/user/demos/local-stub.html
index 1b3ea02..fe1c0b1 100644
--- a/en-us/docs/user/demos/local-stub.html
+++ b/en-us/docs/user/demos/local-stub.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>When using rpc, the client usually only the interface, but sometimes the client also want to perform part of the logic in the client. For example: do ThreadLocal cache, verify parameters, return mock data when call fails., etc.</p>
 <p>To solve this problem, you can configure the stub in the API, so that when the client generates the proxy instance, it passes the proxy to the <code>Stub</code> via the constructor <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup>, and then you can implement your logic in the stub implementation code.</p>
 <p><img src="../sources/images/stub.jpg" alt="/user-guide/images/stub.jpg"></p>
diff --git a/en-us/docs/user/demos/logger-strategy.html b/en-us/docs/user/demos/logger-strategy.html
index 99e9edc..f0f9787 100644
--- a/en-us/docs/user/demos/logger-strategy.html
+++ b/en-us/docs/user/demos/logger-strategy.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p><code>2.2.1</code> or later, dubbo support log4j、slf4j、jcl、jdk adapters <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup>, you can also explicitly configure the log output policy in the following ways:</p>
 <ol start="0">
 <li>
diff --git a/en-us/docs/user/demos/multi-protocols.html b/en-us/docs/user/demos/multi-protocols.html
index c2b37d9..894f0ce 100644
--- a/en-us/docs/user/demos/multi-protocols.html
+++ b/en-us/docs/user/demos/multi-protocols.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo allows you to configure multiple protocols, support different protocols on different services, or support multiple protocols on the same service.</p>
 <h2>Every service export to one specific protocol separately</h2>
 <p>Different protocol performance is not the same. Such as big data should use short connection protocol, small data and concurrent should use long connection protocol.</p>
diff --git a/en-us/docs/user/demos/multi-registry.html b/en-us/docs/user/demos/multi-registry.html
index 846d4b7..dd1ab19 100644
--- a/en-us/docs/user/demos/multi-registry.html
+++ b/en-us/docs/user/demos/multi-registry.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo supports the same service to register multiple registries, or different services were registered to different registries, or even reference the same name service from different registries. In addition, the registry supports custom extensions <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup>。</p>
 <h2>One service register to multiple registries</h2>
 <p>For example: Alibaba some services are not deployed in Qingdao, only deployed in Hangzhou. While other applications in Qingdao need to reference this service, you can register your services to both registries at the same time.</p>
diff --git a/en-us/docs/user/demos/multi-versions.html b/en-us/docs/user/demos/multi-versions.html
index 41af053..ab2efc0 100644
--- a/en-us/docs/user/demos/multi-versions.html
+++ b/en-us/docs/user/demos/multi-versions.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>When an interface to achieve an incompatible upgrade, you can use the version number transition. Different versions of the services do not reference each other.</p>
 <p>You can follow the steps below for version migration:</p>
 <ol start="0">
diff --git a/en-us/docs/user/demos/netty4.html b/en-us/docs/user/demos/netty4.html
index e8d3669..44aa690 100644
--- a/en-us/docs/user/demos/netty4.html
+++ b/en-us/docs/user/demos/netty4.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>provider:</p>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dubbo:protocol</span> <span class="hljs-attr">server</span>=<span class="hljs-string">"netty4"</span> /&gt;</span>
 </code></pre>
diff --git a/en-us/docs/user/demos/parameter-validation.html b/en-us/docs/user/demos/parameter-validation.html
index d314dd7..53dd953 100644
--- a/en-us/docs/user/demos/parameter-validation.html
+++ b/en-us/docs/user/demos/parameter-validation.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The parameter validation <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> is based on [JSR303] (<a href="https://jcp.org/en/jsr/detail?id=303">https://jcp.org/en/jsr/detail?id=303</a>). The user simply add the validation annotation of the JSR303 and declares the filter for validation <sup class="footnote-ref"><a href="#fn2" id="fnref2">[2]</a></sup>.</p>
 <h2>Maven Dependency</h2>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dependency</span>&gt;</span>
diff --git a/en-us/docs/user/demos/preflight-check.html b/en-us/docs/user/demos/preflight-check.html
index 1240815..c8410b7 100644
--- a/en-us/docs/user/demos/preflight-check.html
+++ b/en-us/docs/user/demos/preflight-check.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>By default dubbo will check if the dependent service is available at startup . It will throw an exception to prevent Spring complete initialization when it is not available, so that you can find the problems early before publishing you application, the default setting: <code>check=true</code>.</p>
 <p>You can turn off checking by <code>check=false</code>. For example, some services do not care it when you run testing, or you must have one started firstly because of circular dependency.</p>
 <p>In addition, if your Spring bean is lazy-loaded or you delay reference service with API programming, turn off the check,
diff --git a/en-us/docs/user/demos/reference-config-cache.html b/en-us/docs/user/demos/reference-config-cache.html
index 4601b17..deca605 100644
--- a/en-us/docs/user/demos/reference-config-cache.html
+++ b/en-us/docs/user/demos/reference-config-cache.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The instance of <code>ReferenceConfig</code> is heavy. It encapsulates the connection to the registry and the connection to the provider, so it need to be cached. Otherwise, repeatedly generating <code>ReferenceConfig</code> may cause performance problems , memory and connection leaks. This problem is easy to ignored when programming in API mode.</p>
 <p>Therefore, since <code>2.4.0</code>, dubbo provides a simple utility ReferenceConfigCache for caching instances of <code>ReferenceConfig</code>.</p>
 <p>Use as follows:</p>
diff --git a/en-us/docs/user/demos/registry-only.html b/en-us/docs/user/demos/registry-only.html
index e5451c4..75d111f 100644
--- a/en-us/docs/user/demos/registry-only.html
+++ b/en-us/docs/user/demos/registry-only.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>You have two mirroring environments, two registries.
 You have deployed one service at only one of the registries, another registries have not had time to deploy, and other applications at both registries need to rely on the service.
 At this time, the service provider registers service to another registrar, but the service consumers do not consume the service from another registrar.</p>
diff --git a/en-us/docs/user/demos/result-cache.html b/en-us/docs/user/demos/result-cache.html
index 0ed4129..bea9ffd 100644
--- a/en-us/docs/user/demos/result-cache.html
+++ b/en-us/docs/user/demos/result-cache.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Cache Result <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> is used to speed up access to popular data. Dubbo provides declarative caching to reduce the user work of adding cache <sup class="footnote-ref"><a href="#fn2" id="fnref2">[2]</a></sup>。</p>
 <h2>Cache Type</h2>
 <ul>
diff --git a/en-us/docs/user/demos/routing-rule.html b/en-us/docs/user/demos/routing-rule.html
index 6b386ec..5e4e60b 100644
--- a/en-us/docs/user/demos/routing-rule.html
+++ b/en-us/docs/user/demos/routing-rule.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The routing rules <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> determine the target server of one service call. It has two kinds of routing rules: conditional routing rules and script routing rules. It also support extension<sup class="footnote-ref"><a href="#fn2" id="fnref2">[2]</a></sup>.</p>
 <h2>Write Routing Rules</h2>
 <p>Writing routing rules to the registry is usually done by the monitoring center or the console page.</p>
diff --git a/en-us/docs/user/demos/serialization.html b/en-us/docs/user/demos/serialization.html
index 35281a0..faab14b 100644
--- a/en-us/docs/user/demos/serialization.html
+++ b/en-us/docs/user/demos/serialization.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Start Kryo and FST</h2>
 <p><font size=3>Using Kryo and FST is very simple, just add an attribute to the dubbo RPC XML configurition:</font></p>
 <pre><code>&lt;dubbo:protocol name=&quot;dubbo&quot; serialization=&quot;kryo&quot;/&gt;
diff --git a/en-us/docs/user/demos/service-container.html b/en-us/docs/user/demos/service-container.html
index 43b1033..6ec8456 100644
--- a/en-us/docs/user/demos/service-container.html
+++ b/en-us/docs/user/demos/service-container.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The service container is a standalone launcher because the backend service does not require the functionality of a Web container ,such as Tomcat or JBoss. If you insist on using web containers to load service providers, that increase complexity and is waste of resources.</p>
 <p>The service container is just a simple Main method and loads a simple Spring container to expose the service.</p>
 <p>The content of Service container can be extended, built-in spring, jetty, log4j etc..  This can be expanded with <a href="http://dubbo.apache.org/en-us/docs/dev/impls/container.html">Container Extension Points</a>. Configure it with the -D parameter in the java command or <code>dubbo.properties</code>.</p>
diff --git a/en-us/docs/user/demos/service-downgrade.html b/en-us/docs/user/demos/service-downgrade.html
index 895fc6d..09e16fe 100644
--- a/en-us/docs/user/demos/service-downgrade.html
+++ b/en-us/docs/user/demos/service-downgrade.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>You can temporarilly shield a non-critical service through the service downgrade and define the return policy for it.</p>
 <p>Publish dynamic configuration rule to the registry:</p>
 <pre><code class="language-java">RegistryFactory registryFactory = ExtensionLoader.getExtensionLoader(RegistryFactory.class).getAdaptiveExtension();
diff --git a/en-us/docs/user/demos/service-group.html b/en-us/docs/user/demos/service-group.html
index f291db7..1df5f3d 100644
--- a/en-us/docs/user/demos/service-group.html
+++ b/en-us/docs/user/demos/service-group.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>When you have multi-impls of a interface,you can distinguish them with the group.</p>
 <h2>Service</h2>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dubbo:service</span> <span class="hljs-attr">group</span>=<span class="hljs-string">"feedback"</span> <span class="hljs-attr">interface</span>=<span class="hljs-string">"com.xxx.IndexService"</span> /&gt;</span>
diff --git a/en-us/docs/user/demos/static-service.html b/en-us/docs/user/demos/static-service.html
index 76a9758..5ada6cd 100644
--- a/en-us/docs/user/demos/static-service.html
+++ b/en-us/docs/user/demos/static-service.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <ul>
 <li>Sometimes we want to manually manage the registration and deregistration for service provider, we need to set registry to non-dynamoic mode.</li>
 </ul>
diff --git a/en-us/docs/user/demos/stickiness.html b/en-us/docs/user/demos/stickiness.html
index 6374e25..dc95573 100644
--- a/en-us/docs/user/demos/stickiness.html
+++ b/en-us/docs/user/demos/stickiness.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Sticky connections are used for stateful services, as much as possible so that clients always make calls to the same provider, unless the provider hangs up and connects to the other one.</p>
 <p>Sticky connections will automatically open <a href="./lazy-connect.md">Delayed Connections</a> to reduce the number of long connections.</p>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dubbo:reference</span> <span class="hljs-attr">id</span>=<span class="hljs-string">"xxxService"</span> <span class="hljs-attr">interface</span>=<span class="hljs-string">"com.xxx.XxxService"</span> <span class="hljs-attr">sticky</span>=<span class="hljs-string">"true"</span> /&gt;</span>
diff --git a/en-us/docs/user/demos/subscribe-only.html b/en-us/docs/user/demos/subscribe-only.html
index d48a972..c52ad7a 100644
--- a/en-us/docs/user/demos/subscribe-only.html
+++ b/en-us/docs/user/demos/subscribe-only.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>To facilitate the development of tests, it is common to have a registry of all services available in develop environment.And the registration of a service provider under development may affect consumers' inability to run.</p>
 <p>You can let service provider developers only subscribe to services only (services developed may rely on other services) ,don't register services under development and testing services under development with directly connection.</p>
 <p><img src="../sources/images/subscribe-only.jpg" alt="/user-guide/images/subscribe-only.jpg"></p>
diff --git a/en-us/docs/user/demos/thread-model.html b/en-us/docs/user/demos/thread-model.html
index d4e43cc..7f5388c 100644
--- a/en-us/docs/user/demos/thread-model.html
+++ b/en-us/docs/user/demos/thread-model.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Thread Model</h2>
 <ul>
 <li>If events handing can be executed quickly without sending new request like marking in memory. Events should be handled by I/O thread since it reduces thread dispatching.</li>
diff --git a/en-us/docs/user/demos/token-authorization.html b/en-us/docs/user/demos/token-authorization.html
index 3f02178..94e918b 100644
--- a/en-us/docs/user/demos/token-authorization.html
+++ b/en-us/docs/user/demos/token-authorization.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Through the token authorization control center at the registry to decide whether to issue tokens to consumers, you can prevent consumers from bypassing the registry access provider, another through the registry can flexibly change the authorization without modification or upgrade provider</p>
 <p><img src="../sources/images/dubbo-token.jpg" alt="/user-guide/images/dubbo-token.jpg"></p>
 <p>You can turn on token authentication globally:</p>
diff --git a/en-us/docs/user/dependencies.html b/en-us/docs/user/dependencies.html
index 6072ca8..c3d5c95 100644
--- a/en-us/docs/user/dependencies.html
+++ b/en-us/docs/user/dependencies.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Necessary dependencies</h2>
 <p>JDK 1.6+ <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup></p>
 <h2>Default dependencies</h2>
diff --git a/en-us/docs/user/languages/erlang/reference.html b/en-us/docs/user/languages/erlang/reference.html
index aa07b4c..63c28a9 100644
--- a/en-us/docs/user/languages/erlang/reference.html
+++ b/en-us/docs/user/languages/erlang/reference.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Base Config</h2>
 <p>Consumer config is under the dubboerl application with sys.config</p>
 <pre><code class="language-erlang">{dubboerl,[
diff --git a/en-us/docs/user/languages/erlang/serialization.html b/en-us/docs/user/languages/erlang/serialization.html
index 9b6a1de..3e2e40e 100644
--- a/en-us/docs/user/languages/erlang/serialization.html
+++ b/en-us/docs/user/languages/erlang/serialization.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The library now only supports hessian and json serialization.</p>
 <h2>Configuration example</h2>
 <p>Protocol config is under the dubboerl application with sys.config</p>
diff --git a/en-us/docs/user/languages/erlang/service.html b/en-us/docs/user/languages/erlang/service.html
index 447ffb8..82c5984 100644
--- a/en-us/docs/user/languages/erlang/service.html
+++ b/en-us/docs/user/languages/erlang/service.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Base Config</h2>
 <p>Provider config is under the dubboerl application with sys.config</p>
 <pre><code class="language-erlang">{dubboerl,[
diff --git a/en-us/docs/user/languages/erlang/start.html b/en-us/docs/user/languages/erlang/start.html
index 5a0830a..e6c629b 100644
--- a/en-us/docs/user/languages/erlang/start.html
+++ b/en-us/docs/user/languages/erlang/start.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>We recommend using java to define the Dubbo interface. And use <a href="https://github.com/apache/dubbo-erlang/tree/master/tools/erlanalysis">erlanalysis</a>
 tool parse java interface transfer to erlang lib.</p>
 <h2>Import Dependency Lib</h2>
diff --git a/en-us/docs/user/maturity.html b/en-us/docs/user/maturity.html
index 5fff71f..90ed26d 100644
--- a/en-us/docs/user/maturity.html
+++ b/en-us/docs/user/maturity.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Function maturity</h2>
 <table>
 <thead>
diff --git a/en-us/docs/user/perf-test.html b/en-us/docs/user/perf-test.html
index 07964dd..9bc81d3 100644
--- a/en-us/docs/user/perf-test.html
+++ b/en-us/docs/user/perf-test.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Test instructions</h2>
 <ol start="0">
 <li>In this performance test, the performance of all Dubbo 2.0 supported protocols in different sizes and data types is tested and compared with the Dubbo 1.0.</li>
diff --git a/en-us/docs/user/preface/architecture.html b/en-us/docs/user/preface/architecture.html
index 8cd25f2..676b9b1 100644
--- a/en-us/docs/user/preface/architecture.html
+++ b/en-us/docs/user/preface/architecture.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p><img src="../sources/images/dubbo-architecture.jpg" alt="dubbo-architucture"></p>
 <h5>Specification of Node's Role</h5>
 <table>
diff --git a/en-us/docs/user/preface/background.html b/en-us/docs/user/preface/background.html
index de17ab6..64811b2 100644
--- a/en-us/docs/user/preface/background.html
+++ b/en-us/docs/user/preface/background.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>With the fast development of Internet, the scale of web applications expands unceasingly, and finally we find that the traditional vertical architecture(monolithic) can not handle this any more. Distributed service architecture and the flow computing architecture are imperative, and a governance system is urgently needed to ensure an orderly evolution of the architecture.</p>
 <p><img src="../sources/images/dubbo-architecture-roadmap.jpg" alt="image"></p>
 <h4>Monolithic architecture</h4>
diff --git a/en-us/docs/user/preface/index.html b/en-us/docs/user/preface/index.html
index faee01b..74f59f5 100644
--- a/en-us/docs/user/preface/index.html
+++ b/en-us/docs/user/preface/index.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
 	<script src="https://f.alicdn.com/react/15.4.1/react-dom.min.js"></script>
diff --git a/en-us/docs/user/preface/requirements.html b/en-us/docs/user/preface/requirements.html
index 0728ffa..0abda14 100644
--- a/en-us/docs/user/preface/requirements.html
+++ b/en-us/docs/user/preface/requirements.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p><img src="../sources/images/dubbo-service-governance.jpg" alt="image"></p>
 <p>Before the advent of large-scare services, an application might just exposes or references remote service by using RMI or Hessian, the call is done by configuring service URL, and load balance is done through hardwares, like F5.</p>
 <p><strong>When there are more and more services, it becomes very difficult to configure the service URL, the single point pressure of F5 hardware load balancer is also increasing.</strong> At this point, a service registry is needed to dynamically register and discover services to make the service's location transparent. By obtaining the list of service provider addresses in the consumer side, the soft load balancing and Failover can be realized, this reduces the dependence on the F5 ha [...]
diff --git a/en-us/docs/user/preface/usage.html b/en-us/docs/user/preface/usage.html
index 9a5ca3c..f718555 100644
--- a/en-us/docs/user/preface/usage.html
+++ b/en-us/docs/user/preface/usage.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Spring configuration of local service</h2>
 <p>local.xml:</p>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">bean</span> <span class="hljs-attr">id</span>=<span class="hljs-string">“xxxService”</span> <span class="hljs-attr">class</span>=<span class="hljs-string">“com.xxx.XxxServiceImpl”</span> /&gt;</span>
diff --git a/en-us/docs/user/quick-start.html b/en-us/docs/user/quick-start.html
index e6ac805..59c6fbd 100644
--- a/en-us/docs/user/quick-start.html
+++ b/en-us/docs/user/quick-start.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The most common way to use Dubbo is to run it in Spring framework. The following content will guide you to develop a Dubbo application with Spring framework's <a href="https://docs.spring.io/spring/docs/4.2.x/spring-framework-reference/html/xsd-configuration.html">XML configuration</a>.</p>
 <p>If you don't want to rely on Spring, you can try using <a href="./configuration/api.md">API configuration</a>.</p>
 <p>First let's create a root directory called dubbo-demo:</p>
diff --git a/en-us/docs/user/recommend.html b/en-us/docs/user/recommend.html
index 9130c45..c5597b0 100644
--- a/en-us/docs/user/recommend.html
+++ b/en-us/docs/user/recommend.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Configuring the attributes of the consumer side as much as possible on the provider side</h2>
 <p>the reason is:</p>
 <ul>
diff --git a/en-us/docs/user/references/api.html b/en-us/docs/user/references/api.html
index 2b12738..94658bb 100644
--- a/en-us/docs/user/references/api.html
+++ b/en-us/docs/user/references/api.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Generally speaking, dubbo keeps its functionality no intrusive as much as possible, but for some particular features, there's no other way not only API can achieve. <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup></p>
 <p>These APIs are summarized here below:</p>
 <h2>Configuration API</h2>
diff --git a/en-us/docs/user/references/maven.html b/en-us/docs/user/references/maven.html
index 47a0d25..75dbb54 100644
--- a/en-us/docs/user/references/maven.html
+++ b/en-us/docs/user/references/maven.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <h2>Start a simple registry server</h2>
 <p>Start a simple registry server listening on port 9099 <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup>:</p>
 <pre><code class="language-sh">mvn dubbo:registry -Dport=9099 
diff --git a/en-us/docs/user/references/protocol/dubbo.html b/en-us/docs/user/references/protocol/dubbo.html
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+++ b/en-us/docs/user/references/protocol/dubbo.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo protocol which is the default protocol of Dubbo RPC Framework uses a single long connection and NIO asynchronous communication,it is suitable for small data but with high concurrency RPC call and the number of consumer machine is much greater than provider</p>
 <p>On the other hand, the Dubbo protocol is not suitable for transmitting large amounts of data, such as file transmission, video transmission, etc., unless the request is very low.</p>
 <p><img src="../../sources/images/dubbo-protocol.jpg" alt="dubbo-protocol.jpg"></p>
diff --git a/en-us/docs/user/references/protocol/hessian.html b/en-us/docs/user/references/protocol/hessian.html
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+++ b/en-us/docs/user/references/protocol/hessian.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Hessian protocol is used for integrate Hessian services, and it use http protocol to  communicate and expose services by servlet.Dubbo use Jetty server as default servlet container.</p>
 <p>Dubbo's Hessian protocol interoperates with native Hessian services:</p>
 <ul>
diff --git a/en-us/docs/user/references/protocol/http.html b/en-us/docs/user/references/protocol/http.html
index 11e32fa..23eec0c 100644
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 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo http protocol is base on HTTP form and Spring's HttpInvoker</p>
 <h2>Features</h2>
 <ul>
diff --git a/en-us/docs/user/references/protocol/introduction.html b/en-us/docs/user/references/protocol/introduction.html
index 5c17c18..bb85601 100644
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@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Dubbo protocol is recommended. The performance of each protocol, see:<a href="../../perf-test.md">Performance</a></p>
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
diff --git a/en-us/docs/user/references/protocol/memcached.html b/en-us/docs/user/references/protocol/memcached.html
index 8925bf7..649968a 100644
--- a/en-us/docs/user/references/protocol/memcached.html
+++ b/en-us/docs/user/references/protocol/memcached.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>RPC protocol based on memcached implementation.</p>
 <h2>Register memcached service address</h2>
 <pre><code class="language-java">RegistryFactory registryFactory = ExtensionLoader.getExtensionLoader(RegistryFactory.class).getAdaptiveExtension();
diff --git a/en-us/docs/user/references/protocol/redis.html b/en-us/docs/user/references/protocol/redis.html
index 95fced8..534ef8d 100644
--- a/en-us/docs/user/references/protocol/redis.html
+++ b/en-us/docs/user/references/protocol/redis.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>RPC protocol based on memcached implementation.</p>
 <h2>Register redis service address</h2>
 <pre><code class="language-java">RegistryFactory registryFactory = ExtensionLoader.getExtensionLoader(RegistryFactory.class).getAdaptiveExtension();
diff --git a/en-us/docs/user/references/protocol/rest.html b/en-us/docs/user/references/protocol/rest.html
index fe1e53a..023cc45 100644
--- a/en-us/docs/user/references/protocol/rest.html
+++ b/en-us/docs/user/references/protocol/rest.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>基于标准的Java REST API——JAX-RS 2.0(Java API for RESTful Web Services的简写)实现的REST调用支持</p>
 <h2>快速入门</h2>
 <p>在dubbo中开发一个REST风格的服务会比较简单,下面以一个注册用户的简单服务为例说明。</p>
diff --git a/en-us/docs/user/references/protocol/rmi.html b/en-us/docs/user/references/protocol/rmi.html
index 0d98d47..c9fc68e 100644
--- a/en-us/docs/user/references/protocol/rmi.html
+++ b/en-us/docs/user/references/protocol/rmi.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The RMI protocol uses the JDK standard <code>java.rmi.*</code> Implementation, using a block short connection and JDK standard serialization.</p>
 <h2>Features</h2>
 <ul>
diff --git a/en-us/docs/user/references/protocol/thrift.html b/en-us/docs/user/references/protocol/thrift.html
index c668830..ea3694d 100644
--- a/en-us/docs/user/references/protocol/thrift.html
+++ b/en-us/docs/user/references/protocol/thrift.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The current dubbo support thrift protocol is an extension of the thrift native protocol, adding some additional header information to the native protocol, such as service name, magic number, and so on.</p>
 <p>The use of dubbo thrift protocol also need to use thrift idl compiler to generate the corresponding java code, follow-up version will do some enhancement in this aspect.</p>
 <h2>dependency</h2>
diff --git a/en-us/docs/user/references/protocol/webservice.html b/en-us/docs/user/references/protocol/webservice.html
index d728939..159469f 100644
--- a/en-us/docs/user/references/protocol/webservice.html
+++ b/en-us/docs/user/references/protocol/webservice.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>WebService-based remote calling protocol,base on <a href="http://cxf.apache.org">Apache CXF</a>  <code>frontend-simple</code> and  <code>transports-http</code> implements。</p>
 <p>Interoperable with native WebService services:</p>
 <ul>
diff --git a/en-us/docs/user/references/qos.html b/en-us/docs/user/references/qos.html
index 35139c3..a735e57 100644
--- a/en-us/docs/user/references/qos.html
+++ b/en-us/docs/user/references/qos.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>In dubbo <code>2.5.8</code> a new QOS module is introduced, to provide new telnet command support.</p>
 <h2>Port</h2>
 <p>the port of new version telnet is different from the port of dubbo protocol. The default port is <code>22222</code>, which can be changed by modifying configuration file <code>dubbo.properties</code></p>
diff --git a/en-us/docs/user/references/registry/introduction.html b/en-us/docs/user/references/registry/introduction.html
index 1736ba0..26f3627 100644
--- a/en-us/docs/user/references/registry/introduction.html
+++ b/en-us/docs/user/references/registry/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>It is recommended to use <a href="./zookeeper.md">zookeeper registry server</a></p>
 </div></section><footer class="footer-container"><div class="footer-body"><img src="/img/dubbo_gray.png"/><img class="apache" src="/img/apache_logo.png"/><div class="cols-container"><div class="col col-12"><h3></h3><p></p></div><div class="col col-4"><dl><dt>ASF</dt><dd><a href="http://www.apache.org" target="_self">Foundation</a></dd><dd><a href="http://www.apache.org/licenses/" target="_self">License</a></dd><dd><a href="http://www.apache.org/events/current-event" target="_self">Events [...]
 	<script src="https://f.alicdn.com/react/15.4.1/react-with-addons.min.js"></script>
diff --git a/en-us/docs/user/references/registry/multicast.html b/en-us/docs/user/references/registry/multicast.html
index d302aae..0c87c61 100644
--- a/en-us/docs/user/references/registry/multicast.html
+++ b/en-us/docs/user/references/registry/multicast.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Multicast registry doesn't require to setup any central node. Just like IP address broadcast, dubbo service providers and consumers can discover each other through this mechanism.</p>
 <p><img src="../../sources/images/multicast.jpg" alt="/user-guide/images/multicast.jpg"></p>
 <ol start="0">
diff --git a/en-us/docs/user/references/registry/nacos.html b/en-us/docs/user/references/registry/nacos.html
index 90748ac..395abd3 100644
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@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Nacos is a very important registry center for Dubbo ecosystem, <a href="https://github.com/apache/incubator-dubbo/tree/master/dubbo-registry/dubbo-registry-nacos"><code>dubbo-registry-nacos</code></a> is the implementation of Nacos integration to Nacos.</p>
 <h2>Prepare Work</h2>
 <p>When you integrate <a href="https://github.com/apache/incubator-dubbo/tree/master/dubbo-registry/dubbo-registry-nacos"><code>dubbo-registry-nacos</code></a> into your Dubbo project, please Make sure the Nacos service is started in the background. If you are not familiar with the basic use of Nacos, you can refer to <a href="https://nacos.io/en-us/docs/quick-start.html">Nacos Quick Start</a>. It is recommended to use the version equal or above Nacos <code>1.0.0</code>.</p>
diff --git a/en-us/docs/user/references/registry/redis.html b/en-us/docs/user/references/registry/redis.html
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+++ b/en-us/docs/user/references/registry/redis.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>It is a registry server implementation <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> based on redis <sup class="footnote-ref"><a href="#fn2" id="fnref2">[2]</a></sup>.</p>
 <p><img src="../../sources/images/dubbo-redis-registry.jpg" alt="/user-guide/images/dubbo-redis-registry.jpg"></p>
 <p>Use key/map structure in redis to save the registration info:</p>
diff --git a/en-us/docs/user/references/registry/simple.html b/en-us/docs/user/references/registry/simple.html
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 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Simple registry server itself is a regular dubbo service. In this way, third-party dependency is unnecessary, and communication keeps consistent at the same moment.</p>
 <h2>Configuration</h2>
 <p>Register simple registry server as dubbo service:</p>
diff --git a/en-us/docs/user/references/registry/zookeeper.html b/en-us/docs/user/references/registry/zookeeper.html
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 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p><a href="http://zookeeper.apache.org">Zookeeper</a> is the child project of apache hadoop. Since it offers tree-like directory service and supports change notification, it's suitable to use it as dubbo's registry server. It's a field-proven product, therefore it's recommended to use it in the production environment. <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup></p>
 <p><img src="../../sources/images/zookeeper.jpg" alt="/user-guide/images/zookeeper.jpg"></p>
 <p>Description on registration procedure:</p>
diff --git a/en-us/docs/user/references/telnet.html b/en-us/docs/user/references/telnet.html
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@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Since <code>2.0.5</code> dubbo starts supporting to use telnet command to govern services.</p>
 <h2>How To Use</h2>
 <pre><code class="language-sh">telnet localhost 20880
diff --git a/en-us/docs/user/references/xml/dubbo-application.html b/en-us/docs/user/references/xml/dubbo-application.html
index 8acacba..d4a52eb 100644
--- a/en-us/docs/user/references/xml/dubbo-application.html
+++ b/en-us/docs/user/references/xml/dubbo-application.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Application configuration. The corresponding class: <code>org.apache.dubbo.config.ApplicationConfig</code></p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-argument.html b/en-us/docs/user/references/xml/dubbo-argument.html
index 3695a84..eb6eb1c 100644
--- a/en-us/docs/user/references/xml/dubbo-argument.html
+++ b/en-us/docs/user/references/xml/dubbo-argument.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Method argument configuration. The corresponding class:<code>org.apache.dubbo.config.ArgumentConfig</code>. This tag is child of <code>&lt;dubbo:method&gt;</code>, which is for feature description of method argument, such as:</p>
 <pre><code class="language-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dubbo:method</span> <span class="hljs-attr">name</span>=<span class="hljs-string">"findXxx"</span> <span class="hljs-attr">timeout</span>=<span class="hljs-string">"3000"</span> <span class="hljs-attr">retries</span>=<span class="hljs-string">"2"</span>&gt;</span>
     <span class="hljs-tag">&lt;<span class="hljs-name">dubbo:argument</span> <span class="hljs-attr">index</span>=<span class="hljs-string">"0"</span> <span class="hljs-attr">callback</span>=<span class="hljs-string">"true"</span> /&gt;</span>
diff --git a/en-us/docs/user/references/xml/dubbo-application.html b/en-us/docs/user/references/xml/dubbo-config-center.html
similarity index 53%
copy from en-us/docs/user/references/xml/dubbo-application.html
copy to en-us/docs/user/references/xml/dubbo-config-center.html
index 8acacba..b4253a6 100644
--- a/en-us/docs/user/references/xml/dubbo-application.html
+++ b/en-us/docs/user/references/xml/dubbo-config-center.html
@@ -4,109 +4,145 @@
 <head>
 	<meta charset="UTF-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
-	<meta name="keywords" content="dubbo-application" />
-	<meta name="description" content="dubbo-application" />
+	<meta name="keywords" content="dubbo-config-center" />
+	<meta name="description" content="dubbo-config-center" />
 	<!-- 网页标签标题 -->
-	<title>dubbo-application</title>
+	<title>dubbo-config-center</title>
 	<link rel="shortcut icon" href="/img/dubbo.ico"/>
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
-<p>Application configuration. The corresponding class: <code>org.apache.dubbo.config.ApplicationConfig</code></p>
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+<p>Configuration center. Corresponding configuration class: <code>org.apache.dubbo.config.ConfigCenterConfig</code></p>
 <table>
 <thead>
 <tr>
-<th>Property</th>
+<th>property</th>
 <th>Corresponding URL parameter</th>
-<th>Type</th>
-<th>Requisite</th>
-<th>Default</th>
-<th>Effect</th>
-<th>Description</th>
-<th>Compatibility</th>
+<th>type</th>
+<th>required</th>
+<th>default value</th>
+<th>description</th>
+<th>compatibility</th>
 </tr>
 </thead>
 <tbody>
 <tr>
-<td>name</td>
-<td>application</td>
+<td>protocol</td>
+<td>config.protocol</td>
 <td>string</td>
-<td><b>Y</b></td>
-<td></td>
-<td>service governance</td>
-<td>Application name is the unique identifier of an application. It is for registry combing the dependencies of applications. Note: Consumer and provider application name should not be the same, and this parameter is not a match condition. As a suggestion, you can name it as your project name. For example, kylin application invokes the service of morgan application, then you can name kylin application as &quot;kylin&quot;, and morgan application as &quot;morgan&quot;. Maybe kylin also wo [...]
-<td>above 1.0.16</td>
+<td>optional</td>
+<td>zookeeper</td>
+<td>Which configuration center to use: apollo, zookeeper, nacos, etc.<br />take zookeeper for example<br />1. If protocol is specified, address can be simplified to <code>127.0.0.1:2181</code>;<br />2. If protocol is not specified, address is set to <code>zookeeper://127.0.0.1:2181</code></td>
+<td>2.7.0+</td>
 </tr>
 <tr>
-<td>version</td>
-<td>application.version</td>
+<td>address</td>
+<td>config.address</td>
 <td>string</td>
-<td>N</td>
+<td>required</td>
 <td></td>
-<td>service governance</td>
-<td>The version of current application</td>
-<td>above 2.2.0</td>
+<td>Configuration center address.<br />See protocol description for values</td>
+<td>2.7.0+</td>
+</tr>
+<tr>
+<td>highest-priority</td>
+<td>config.highestPriority</td>
+<td>boolean</td>
+<td>optional</td>
+<td>true</td>
+<td>Configuration items from the configuration center have the highest priority, it means that the local configuration items will be overwritten.</td>
+<td>2.7.0+</td>
 </tr>
 <tr>
-<td>owner</td>
-<td>owner</td>
+<td>namespace</td>
+<td>config.namespace</td>
 <td>string</td>
-<td>N</td>
-<td></td>
-<td>service governance</td>
-<td>Application manager. Pls. fill in the mailbox prefix of the person in charge</td>
-<td>above 2.0.5</td>
+<td>optional</td>
+<td>dubbo</td>
+<td>Using for multi-tenant isolation generally, the actual meaning varies depending on the configuration center. <br />For example:<br />zookeeper - Environment isolation, default <code>dubbo</code>;<br />apollo - Distinguish between sets of configurations for different domains and use them by default <code>dubbo</code> and <code>application</code></td>
+<td>2.7.0+</td>
 </tr>
 <tr>
-<td>organization</td>
-<td>organization</td>
+<td>cluster</td>
+<td>config.cluster</td>
 <td>string</td>
-<td>N</td>
+<td>optional</td>
 <td></td>
-<td>service governance</td>
-<td>Organization name is for registry distinguishing between the source of service. As a suggestion, this property should be written in config file directly. Such as china,intl,itu,crm,asc,dw,aliexpress etc.</td>
-<td>above 2.0.0</td>
+<td>The meaning varies according to the configuration center selected.<br />For example,  it's used to distinguish between different configuration clusters in apollo</td>
+<td>2.7.0+</td>
 </tr>
 <tr>
-<td>architecture <br class="atl-forced-newline" /></td>
-<td>architecture <br class="atl-forced-newline" /></td>
+<td>group</td>
+<td>config.group</td>
 <td>string</td>
-<td>N</td>
-<td></td>
-<td>service governance</td>
-<td>The architecture of service layering. Like intl,china and so on. Different architecture use different layer</td>
-<td>above 2.0.7</td>
+<td>optional</td>
+<td>dubbo</td>
+<td>The meaning varies according to the configuration center selected.<br />nacos - Isolate different configuration sets<br />zookeeper - Isolate different configuration sets</td>
+<td>2.7.0+</td>
+</tr>
+<tr>
+<td>check</td>
+<td>config.check</td>
+<td>boolean</td>
+<td>optional</td>
+<td>true</td>
+<td>Whether to terminate application startup when the configuration hub connection fails.</td>
+<td>2.7.0+</td>
 </tr>
 <tr>
-<td>environment</td>
-<td>environment</td>
+<td>config-file</td>
+<td>config.configFile</td>
 <td>string</td>
-<td>N</td>
+<td>optional</td>
+<td>dubbo.properties</td>
+<td>The key mapped to the global level profile<br />zookeeper - $DEFAULT_PATH/dubbo/config/dubbo/dubbo.properties<br />apollo - The dubbo.properties key in dubbo namespace</td>
+<td>2.7.0+</td>
+</tr>
+<tr>
+<td>timeout</td>
+<td>config.timeout</td>
+<td>integer</td>
 <td></td>
-<td>service governance</td>
-<td>Application environment. Like develop,test,product. Work as the limit condition of developing new function</td>
-<td>above 2.0.0</td>
+<td>3000ms</td>
+<td>Gets the configured timeout</td>
+<td>2.7.0+</td>
 </tr>
 <tr>
-<td>compiler</td>
-<td>compiler</td>
+<td>username</td>
+<td></td>
 <td>string</td>
-<td>N</td>
-<td>javassist</td>
-<td>performance optimization</td>
-<td>Java class <a href="http://compile.It">compile.It</a> is used for the generating of dynamic class. The options are JDK and javassist</td>
-<td>above 2.1.0</td>
+<td></td>
+<td></td>
+<td>the username if the configuration center requires validation<br />Apollo is not yet enabled</td>
+<td>2.7.0+</td>
 </tr>
 <tr>
-<td>logger</td>
-<td>logger</td>
+<td>password</td>
+<td></td>
 <td>string</td>
-<td>N</td>
-<td>slf4j</td>
-<td>performance optimization</td>
-<td>The format of log output,The options are slf4j,jcl,log4j,log4j2 and jdk</td>
-<td>above 2.2.0</td>
+<td></td>
+<td></td>
+<td>password if configuration center needs to do check<br />Apollo is not yet enabled</td>
+<td>2.7.0+</td>
+</tr>
+<tr>
+<td>parameters</td>
+<td></td>
+<td>Map&lt;string, string&gt;</td>
+<td></td>
+<td></td>
+<td>Extended parameters to support customized configuration parameters for different configuration centers</td>
+<td>2.7.0+</td>
+</tr>
+<tr>
+<td>include-spring-env</td>
+<td></td>
+<td>boolean</td>
+<td>optional</td>
+<td>false</td>
+<td>With the Spring framework support, when the value is <code>true</code>, it will automatically reads the configuration from the Spring Environment<br />Read by default<br />Configuration with key <code>dubbo.properties</code><br />PropertySource with key <code>dubbo.properties</code></td>
+<td>2.7.0+</td>
 </tr>
 </tbody>
 </table>
diff --git a/en-us/docs/user/references/xml/dubbo-config-center.json b/en-us/docs/user/references/xml/dubbo-config-center.json
new file mode 100644
index 0000000..6678d04
--- /dev/null
+++ b/en-us/docs/user/references/xml/dubbo-config-center.json
@@ -0,0 +1,6 @@
+{
+  "filename": "dubbo-config-center.md",
+  "__html": "<h1>dubbo:config-center</h1>\n<p>Configuration center. Corresponding configuration class: <code>org.apache.dubbo.config.ConfigCenterConfig</code></p>\n<table>\n<thead>\n<tr>\n<th>property</th>\n<th>Corresponding URL parameter</th>\n<th>type</th>\n<th>required</th>\n<th>default value</th>\n<th>description</th>\n<th>compatibility</th>\n</tr>\n</thead>\n<tbody>\n<tr>\n<td>protocol</td>\n<td>config.protocol</td>\n<td>string</td>\n<td>optional</td>\n<td>zookeeper</td>\n<td>Which  [...]
+  "link": "/en-us/docs/user/references/xml/dubbo-config-center.html",
+  "meta": {}
+}
\ No newline at end of file
diff --git a/en-us/docs/user/references/xml/dubbo-consumer.html b/en-us/docs/user/references/xml/dubbo-consumer.html
index f6370a2..fd7f2a8 100644
--- a/en-us/docs/user/references/xml/dubbo-consumer.html
+++ b/en-us/docs/user/references/xml/dubbo-consumer.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Consumer default configuration. The corresponding clas: <code>org.apache.dubbo.config.ConsumerConfig</code>. It is also default configuration of <code>&lt;dubbo:reference&gt;</code>.</p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-method.html b/en-us/docs/user/references/xml/dubbo-method.html
index 477ceab..7dc21d4 100644
--- a/en-us/docs/user/references/xml/dubbo-method.html
+++ b/en-us/docs/user/references/xml/dubbo-method.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Method level configuration. The corresponding class: <code>org.apache.dubbo.config.MethodConfig</code>. This tag is a child tag of <code>&lt;dubbo:service&gt;</code> or <code>&lt;dubbo:reference&gt;</code>, for accuracy to method level.</p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-module.html b/en-us/docs/user/references/xml/dubbo-module.html
index 9896cca..03734c0 100644
--- a/en-us/docs/user/references/xml/dubbo-module.html
+++ b/en-us/docs/user/references/xml/dubbo-module.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Module configuration. The corresponding class <code>org.apache.dubbo.config.ModuleConfig</code></p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-monitor.html b/en-us/docs/user/references/xml/dubbo-monitor.html
index b8ad2c0..67df977 100644
--- a/en-us/docs/user/references/xml/dubbo-monitor.html
+++ b/en-us/docs/user/references/xml/dubbo-monitor.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Monitor center configuration. The corresponding class: <code>org.apache.dubbo.config.MonitorConfig</code></p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-parameter.html b/en-us/docs/user/references/xml/dubbo-parameter.html
index d17c139..d16c5a2 100644
--- a/en-us/docs/user/references/xml/dubbo-parameter.html
+++ b/en-us/docs/user/references/xml/dubbo-parameter.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Optional parameter configuration. The corresponding class is <code>java.util.Map</code>. This tag is used as a sub tag to configure custom parameters for extending <code>&lt;dubbo:protocol&gt;</code>, <code>&lt;dubbo:service&gt;</code>, <code>&lt;dubbo:provider&gt;</code>, <code>&lt;dubbo:reference&gt;</code> or <code>&lt;dubbo:consumer&gt;</code>.</p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-protocol.html b/en-us/docs/user/references/xml/dubbo-protocol.html
index b42e24b..7b50cce 100644
--- a/en-us/docs/user/references/xml/dubbo-protocol.html
+++ b/en-us/docs/user/references/xml/dubbo-protocol.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>Service provider protocol configuration. The corresponding class is <code>org.apache.dubbo.config.ProtocolConfig</code>. If you need to support multiple protocols, you could declare multiple <code>&lt;dubbo:protocol&gt;</code> tags, and specify the protocol via <code>protocol</code> property.</p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-provider.html b/en-us/docs/user/references/xml/dubbo-provider.html
index 285ab7f..e356639 100644
--- a/en-us/docs/user/references/xml/dubbo-provider.html
+++ b/en-us/docs/user/references/xml/dubbo-provider.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The default configuration of service provider. The corresponding class is <code>org.apache.dubbo.config.ProviderConfig</code>. This tag provider default values for <code>&lt;dubbo:service&gt;</code> and <code>&lt;dubbo:protocol&gt;</code>.</p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-reference.html b/en-us/docs/user/references/xml/dubbo-reference.html
index 90f89a1..86f7f4a 100644
--- a/en-us/docs/user/references/xml/dubbo-reference.html
+++ b/en-us/docs/user/references/xml/dubbo-reference.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The configuration of service consumer. The corresponding class is<code>org.apache.dubbo.config.ReferenceConfig</code></p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-registry.html b/en-us/docs/user/references/xml/dubbo-registry.html
index dd2b802..f18f4ef 100644
--- a/en-us/docs/user/references/xml/dubbo-registry.html
+++ b/en-us/docs/user/references/xml/dubbo-registry.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The configuration of the registry center. The corresponding class is <code>org.apache.dubbo.config.RegistryConfig</code>. If you have multiple different registries, you can declare multiple <code>&lt;dubbo:registry&gt;</code> tags, and then reference specified registry with <code>registry</code> property in <code>&lt;dubbo:service&gt;</code> or <code>&lt;dubbo:reference&gt;</code> tag.</p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/dubbo-service.html b/en-us/docs/user/references/xml/dubbo-service.html
index be6ac97..c2244f1 100644
--- a/en-us/docs/user/references/xml/dubbo-service.html
+++ b/en-us/docs/user/references/xml/dubbo-service.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The configuration of the service provider. The corresponding class is <code>org.apache.dubbo.config.ServiceConfig</code>.</p>
 <table>
 <thead>
diff --git a/en-us/docs/user/references/xml/introduction.html b/en-us/docs/user/references/xml/introduction.html
index 92f07ee..6ed14c7 100644
--- a/en-us/docs/user/references/xml/introduction.html
+++ b/en-us/docs/user/references/xml/introduction.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p>The following pages show all the configuration properties <sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> with XML Config <sup class="footnote-ref"><a href="#fn2" id="fnref2">[2]</a></sup> as an example.  For other configurations, please reference: <a href="../../configuration/properties.md">Properties Configuration</a>, <a href="../../configuration/annotation.md">Annotation Configuration</a>, <a href="../../configuration/api.md">API Configuration</a>.</p>
 <p>All configuration properties fall into three categories, see the &quot;Function&quot; in the table below.</p>
 <ul>
diff --git a/en-us/docs/user/rest.html b/en-us/docs/user/rest.html
index 18adea0..0070f99 100644
--- a/en-us/docs/user/rest.html
+++ b/en-us/docs/user/rest.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p><strong>Original author: Li Shen</strong></p>
 <p><strong>Document copyright: <a href="HTTP://www.apache.org/licenses/LICENSE-2.0">Apache 2.0license Signature - No interpretation</a></strong></p>
 <p>Working in progress ...</p>
diff --git a/en-us/docs/user/simple-monitor.html b/en-us/docs/user/simple-monitor.html
index d796b7d..78470b0 100644
--- a/en-us/docs/user/simple-monitor.html
+++ b/en-us/docs/user/simple-monitor.html
@@ -12,7 +12,7 @@
 	<link rel="stylesheet" href="/build/documentation.css" />
 </head>
 <body>
-	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
+	<div id="root"><div class="documentation-page" data-reactroot=""><header class="header-container header-container-normal"><div class="header-body"><a href="/en-us/index.html"><img class="logo" src="/img/dubbo_colorful.png"/></a><div class="search search-normal"><span class="icon-search"></span></div><span class="language-switch language-switch-normal">中</span><div class="header-menu"><img class="header-menu-toggle" src="/img/menu_gray.png"/><ul><li class="menu-item menu-item-normal"><a  [...]
 <p><img src="sources/images/check.gif" alt="warning">Monitor service is a standard Dubbo service,can be exported to the registry,also can be connected straightly。</p>
 </blockquote>
 <blockquote>
diff --git a/md_json/docs.json b/md_json/docs.json
index 47ca6b0..31a4aad 100644
--- a/md_json/docs.json
+++ b/md_json/docs.json
@@ -913,6 +913,11 @@
       "meta": {}
     },
     {
+      "filename": "dubbo-config-center.md",
+      "link": "/en-us/docs/user/references/xml/dubbo-config-center.html",
+      "meta": {}
+    },
+    {
       "filename": "dubbo-consumer.md",
       "link": "/en-us/docs/user/references/xml/dubbo-consumer.html",
       "meta": {}