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Posted to notifications@skywalking.apache.org by gi...@apache.org on 2021/02/05 05:55:00 UTC

[skywalking-website] branch asf-site updated: deploy: dc97b2cd88d0ebd143587a95cf2fb14c51ac9b99

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

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


The following commit(s) were added to refs/heads/asf-site by this push:
     new 0d11ab6  deploy: dc97b2cd88d0ebd143587a95cf2fb14c51ac9b99
0d11ab6 is described below

commit 0d11ab60eee58daa4f545dce1cac46a5ed5f58fb
Author: kezhenxu94 <ke...@users.noreply.github.com>
AuthorDate: Fri Feb 5 05:54:49 2021 +0000

    deploy: dc97b2cd88d0ebd143587a95cf2fb14c51ac9b99
---
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 183 files changed, 1256 insertions(+), 656 deletions(-)

diff --git a/blog/2018-05-24-skywalking-net/index.html b/blog/2018-05-24-skywalking-net/index.html
index bc16c1d..528af92 100644
--- a/blog/2018-05-24-skywalking-net/index.html
+++ b/blog/2018-05-24-skywalking-net/index.html
@@ -24,11 +24,11 @@
 <meta property="og:type" content="article" />
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 <meta itemprop="datePublished" content="2018-05-24T00:00:00+00:00" />
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@@ -325,7 +325,7 @@ dotnet run -p sample/SkyWalking.Sample.Frontend</p>
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
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diff --git a/blog/2018-12-12-skywalking-service-mesh-ready/index.html b/blog/2018-12-12-skywalking-service-mesh-ready/index.html
index a961578..5ae645d 100644
--- a/blog/2018-12-12-skywalking-service-mesh-ready/index.html
+++ b/blog/2018-12-12-skywalking-service-mesh-ready/index.html
@@ -24,11 +24,11 @@
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/blog/2018-12-12-skywalking-service-mesh-ready/" />
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 <meta itemprop="datePublished" content="2018-12-05T00:00:00+00:00" />
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@@ -369,7 +369,7 @@ This is why we are embracing Skywalking, which makes service performance observa
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
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diff --git a/blog/2019-01-01-understand-trace/index.html b/blog/2019-01-01-understand-trace/index.html
index a603886..eacdce8 100644
--- a/blog/2019-01-01-understand-trace/index.html
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@@ -24,11 +24,11 @@
 <meta property="og:type" content="article" />
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 <meta property="article:published_time" content="2019-01-01T00:00:00+00:00" />
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 <meta itemprop="description" content="Distributed tracing is a necessary part of modern microservices architecture, but how to understand or use distributed tracing data is unclear to some end users. This blog overviews typical distributed tracing use cases with new visualization features in SkyWalking v6.">
 <meta itemprop="datePublished" content="2019-01-01T00:00:00+00:00" />
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@@ -326,7 +326,7 @@ if (!doNotTrack) {
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
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diff --git a/blog/2019-01-25-mesh-loadtest/index.html b/blog/2019-01-25-mesh-loadtest/index.html
index a7520c9..49f074e 100644
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 <meta property="og:type" content="article" />
 <meta property="og:url" content="/blog/2019-01-25-mesh-loadtest/" />
 <meta property="article:published_time" content="2019-01-25T00:00:00+00:00" />
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 <meta itemprop="description" content="Service mesh receiver performance test on Google Kubernetes Engine.">
 <meta itemprop="datePublished" content="2019-01-25T00:00:00+00:00" />
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@@ -328,7 +328,7 @@ if (!doNotTrack) {
         
         <li>
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diff --git a/blog/2019-09-25-alarm-webhook-share/index.html b/blog/2019-09-25-alarm-webhook-share/index.html
index 7e30cbc..1b06350 100644
--- a/blog/2019-09-25-alarm-webhook-share/index.html
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@@ -24,11 +24,11 @@
 <meta property="og:type" content="article" />
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@@ -313,7 +313,7 @@ bash build/build.sh
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
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+            <span class="count">3</span>
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index aea6b2b..c86a152 100644
--- a/blog/2020-01-20-celebrate-200th-contributor/index.html
+++ b/blog/2020-01-20-celebrate-200th-contributor/index.html
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@@ -294,7 +294,7 @@ At the moment of graduation in spring 2019, the project had 100 contributors. No
         
         <li>
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index 5cd77a1..0ca10f3 100644
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@@ -342,7 +342,7 @@ try {
         
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index 27d5ea0..4f39882 100644
--- a/blog/2020-07-26-apdex-and-skywalking/index.html
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@@ -24,11 +24,11 @@
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@@ -345,7 +345,7 @@ Apdex Score  =  ------------------------------------------------------
         
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     <header>
@@ -166,70 +166,164 @@ if (!doNotTrack) {
           <main class="col-12 col-md-12 col-xl-10 pl-md-4 pr-md-4" role="main">
             
 <div class="td-content">
-	<h1>SkyWalking alarm webhook sharing</h1>
-	<div class="lead">Alerts via SkyWalking alarm webhook for better perception of tracing.</div>
+	<h1>[Design] The Verifier of NGE2E</h1>
+	<div class="lead">The design of Next Generation End-to-End Testing Framework  Verifier</div>
 	<div class="td-byline mb-4">
-		By <b>Wei Qiang</b> |
-		<time datetime="2019-09-25" class="text-muted">Wednesday, September 25, 2019</time>
+		By <b><a href="https://github.com/kezhenxu94">Zhenxu Ke</a>, Tetrate.io; <a href="http://github.com/fgksgf">Huaxi Jiang</a>, Committer; <a href="http://github.com/HumbertZhang">Ke Zhang</a>, Committer</b> |
+		<time datetime="2021-02-01" class="text-muted">Monday, February 01, 2021</time>
 
 
 		
 		<p class="mt-1 tags-box">
 			<i class="fas fa-tags" aria-hidden="true"></i>Tags |
 			
-			<span> <a href="/tags/user-manual">User Manual</a></span>
+			<span> <a href="/tags/testing">Testing</a></span>
 			
 		</p>
 		
 
 
 	</div>
-	<ul>
-<li>Author: Wei Qiang</li>
-<li><a href="https://github.com/weiqiang333">GitHub</a></li>
-</ul>
-<h2 id="background">Background</h2>
-<p>SkyWalking backend provides the alarm function, we can define some Alarm rules, call webhook after the rule is triggered. I share my implementation</p>
-<h2 id="demonstration">Demonstration</h2>
-<p><img src="skywalking-UI-alarm.png" alt=""></p>
-<p align="center">SkyWalking alarm UI</p>
-<p><img src="skywalking-dingding-notify.png" alt=""></p>
-<p align="center">dingtalk message body</p>
-<h2 id="introduction">Introduction</h2>
-<ul>
-<li>install</li>
-</ul>
-<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">go get -u github.com/weiqiang333/infra-skywalking-webhook
-cd $GOPATH/src/github.com/weiqiang333/infra-skywalking-webhook/
-bash build/build.sh
-./bin/infra-skywalking-webhook help
-</code></pre></div><ul>
-<li>Configuration</li>
-</ul>
-<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#66d9ef">main configs file</span>: configs/production.yml
-<span style="color:#66d9ef">dingtalk</span>:
-  <span style="color:#66d9ef">p3</span>: token...
-</code></pre></div><ul>
-<li>Example</li>
-</ul>
-<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-bash" data-lang="bash">./bin/infra-skywalking-webhook --config configs/production.yml --address 0.0.0.0:8000
-</code></pre></div><ul>
-<li>SkyWalking backend alarm settings</li>
-</ul>
-<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#66d9ef">webhooks</span>:
-  - http://<span style="color:#ae81ff">127.0.0.1</span>:<span style="color:#ae81ff">8000</span>/dingtalk
-</code></pre></div><h2 id="collaboration">Collaboration</h2>
-<p>Hope that we can improve together <a href="https://github.com/weiqiang333/infra-skywalking-webhook">webhook</a></p>
-<p>SkyWalking alarm rules may add more metric names (eg priority name), we can send different channels by locating different levels of alerts (dingtalk / SMS / phone)</p>
-<p>Thanks.</p>
+	<h2 id="background">Background</h2>
+<p>The verifier is an important part of the next generation End-to-End Testing framework (NGE2E), which is responsible for verifying whether the actual output satisfies the expected template.</p>
+<h2 id="design-thinking">Design Thinking</h2>
+<p>We will implement the verifier with <a href="https://golang.org/pkg/text/template/">Go template</a>, plus some enhancements. Firstly, users need to write a Go template file with provided functions and actions to describe how the expected data looks like. Then the verifer renders the template with the actual data object. Finally, the verifier compares the rendered output with the actual data. If the rendered output is not the same with the actual output, it means the actual data is inc [...]
+<h2 id="branches--actions">Branches / Actions</h2>
+<p>The verifier inherits all the actions from the standard Go template, such as <code>if</code>, <code>with</code>, <code>range</code>, etc. In addition, we also provide some custom actions to satisfy our own needs.</p>
+<h3 id="list-elements-match">List Elements Match</h3>
+<p><code>contains</code> checks if the actual list contains elements that match the given template.</p>
+<p>Examples:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#66d9ef">metrics</span>:
+{{- contains .metrics }}
+  - <span style="color:#66d9ef">name</span>: {{ notEmpty .name }}
+    <span style="color:#66d9ef">id</span>: {{ notEmpty .id }}
+    <span style="color:#66d9ef">value</span>: {{ gt .value <span style="color:#ae81ff">0</span> }}
+{{- end }}
+</code></pre></div><p>It means that the list <code>metrics</code> must contain an element whose <code>name</code> and <code>id</code> are not empty, and <code>value</code> is greater than <code>0</code>.</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#66d9ef">metrics</span>:
+{{- contains .metrics }}
+  - <span style="color:#66d9ef">name</span>: p95
+    <span style="color:#66d9ef">value</span>: {{ gt .value <span style="color:#ae81ff">0</span> }}
+  - <span style="color:#66d9ef">name</span>: p99
+    <span style="color:#66d9ef">value</span>: {{ gt .value <span style="color:#ae81ff">0</span> }}
+{{- end }}
+</code></pre></div><p>This means that the list <code>metrics</code> must contain an element named <code>p95</code> with a <code>value</code> greater than 0, and an element named <code>p95</code> with a <code>value</code> greater than 0. Besides the two element, the list <code>metrics</code> may or may not have other random elements.</p>
+<h2 id="functions">Functions</h2>
+<p>Users can use these provided functions in the template to describe the expected data.</p>
+<h3 id="not-empty">Not Empty</h3>
+<p><code>notEmpty</code> checks if the string <code>s</code> is empty.</p>
+<p>Example:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#66d9ef">id</span>: {{ notEmpty .id }}
+</code></pre></div><h3 id="regexp-match">Regexp match</h3>
+<p><code>regexp</code> checks if string <code>s</code> matches the regular expression pattern.</p>
+<p>Examples:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#66d9ef">label</span>: {{ regexp .label <span style="color:#e6db74">&#34;ratings.*&#34;</span> }}
+</code></pre></div><h3 id="base64">Base64</h3>
+<p><code>b64enc s</code> returns the Base64 encoded string of s.</p>
+<p>Examples:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#66d9ef">id</span>: {{ b64enc <span style="color:#e6db74">&#34;User&#34;</span> }}.static-suffix <span style="color:#75715e"># this evalutes the base64 encoded string of &#34;User&#34;, concatenated with a static suffix &#34;.static-suffix&#34;</span>
+</code></pre></div><p>Result:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#66d9ef">id</span>: VXNlcg==.static-suffix
+</code></pre></div><h2 id="full-example">Full Example</h2>
+<p>Here is an example of expected data:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#75715e"># expected.data.yaml</span>
+<span style="color:#66d9ef">nodes</span>:
+  - <span style="color:#66d9ef">id</span>: {{ b64enc <span style="color:#e6db74">&#34;User&#34;</span> }}.<span style="color:#ae81ff">0</span>
+    <span style="color:#66d9ef">name</span>: User
+    <span style="color:#66d9ef">type</span>: USER
+    <span style="color:#66d9ef">isReal</span>: <span style="color:#66d9ef">false</span>
+  - <span style="color:#66d9ef">id</span>: {{ b64enc <span style="color:#e6db74">&#34;Your_ApplicationName&#34;</span> }}.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">name</span>: Your_ApplicationName
+    <span style="color:#66d9ef">type</span>: Tomcat
+    <span style="color:#66d9ef">isReal</span>: <span style="color:#66d9ef">true</span>
+  - <span style="color:#66d9ef">id</span>: {{ $h2ID := (index .nodes <span style="color:#ae81ff">2</span>).id }}{{ notEmpty $h2ID }} <span style="color:#75715e"># We assert that nodes[2].id is not empty and save it to variable `h2ID` for later use</span>
+    <span style="color:#66d9ef">name</span>: localhost:-<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">type</span>: H2
+    <span style="color:#66d9ef">isReal</span>: <span style="color:#66d9ef">false</span>
+<span style="color:#66d9ef">calls</span>:
+  - <span style="color:#66d9ef">id</span>: {{ notEmpty (index .calls <span style="color:#ae81ff">0</span>).id }}
+    <span style="color:#66d9ef">source</span>: {{ b64enc <span style="color:#e6db74">&#34;Your_ApplicationName&#34;</span> }}.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">target</span>: {{ $h2ID }} <span style="color:#75715e"># We use the previously assigned variable `h2Id` to asert that the `target` is equal to the `id` of the nodes[2]</span>
+    <span style="color:#66d9ef">detectPoints</span>:
+      - CLIENT
+  - <span style="color:#66d9ef">id</span>: {{ b64enc <span style="color:#e6db74">&#34;User&#34;</span> }}.<span style="color:#ae81ff">0</span>-{{ b64enc <span style="color:#e6db74">&#34;Your_ApplicationName&#34;</span> }}.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">source</span>: {{ b64enc <span style="color:#e6db74">&#34;User&#34;</span> }}.<span style="color:#ae81ff">0</span>
+    <span style="color:#66d9ef">target</span>: {{ b64enc <span style="color:#e6db74">&#34;Your_ApplicationName&#34;</span> }}.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">detectPoints</span>:
+      - SERVER
+</code></pre></div><p>will validate this data:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#75715e"># actual.data.yaml</span>
+<span style="color:#66d9ef">nodes</span>:
+  - <span style="color:#66d9ef">id</span>: VXNlcg==.<span style="color:#ae81ff">0</span>
+    <span style="color:#66d9ef">name</span>: User
+    <span style="color:#66d9ef">type</span>: USER
+    <span style="color:#66d9ef">isReal</span>: <span style="color:#66d9ef">false</span>
+  - <span style="color:#66d9ef">id</span>: WW91cl9BcHBsaWNhdGlvbk5hbWU=.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">name</span>: Your_ApplicationName
+    <span style="color:#66d9ef">type</span>: Tomcat
+    <span style="color:#66d9ef">isReal</span>: <span style="color:#66d9ef">true</span>
+  - <span style="color:#66d9ef">id</span>: bG9jYWxob3N0Oi0x<span style="color:#ae81ff">.0</span>
+    <span style="color:#66d9ef">name</span>: localhost:-<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">type</span>: H2
+    <span style="color:#66d9ef">isReal</span>: <span style="color:#66d9ef">false</span>
+<span style="color:#66d9ef">calls</span>:
+  - <span style="color:#66d9ef">id</span>: WW91cl9BcHBsaWNhdGlvbk5hbWU=.<span style="color:#ae81ff">1</span>-bG9jYWxob3N0Oi0x<span style="color:#ae81ff">.0</span>
+    <span style="color:#66d9ef">source</span>: WW91cl9BcHBsaWNhdGlvbk5hbWU=.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">detectPoints</span>:
+      - CLIENT
+    <span style="color:#66d9ef">target</span>: bG9jYWxob3N0Oi0x<span style="color:#ae81ff">.0</span>
+  - <span style="color:#66d9ef">id</span>: VXNlcg==.<span style="color:#ae81ff">0</span>-WW91cl9BcHBsaWNhdGlvbk5hbWU=.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">source</span>: VXNlcg==.<span style="color:#ae81ff">0</span>
+    <span style="color:#66d9ef">detectPoints</span>:
+      - SERVER
+    <span style="color:#66d9ef">target</span>: WW91cl9BcHBsaWNhdGlvbk5hbWU=.<span style="color:#ae81ff">1</span>
+</code></pre></div><div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#75715e"># expected.data.yaml</span>
+<span style="color:#66d9ef">metrics</span>:
+{{- contains .metrics }}
+  - <span style="color:#66d9ef">name</span>: {{ notEmpty .name }}
+    <span style="color:#66d9ef">id</span>: {{ notEmpty .id }}
+    <span style="color:#66d9ef">value</span>: {{ gt .value <span style="color:#ae81ff">0</span> }}
+{{- end }}
+</code></pre></div><p>will validate this data:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#75715e"># actual.data.yaml</span>
+<span style="color:#66d9ef">metrics</span>:
+  - <span style="color:#66d9ef">name</span>: business-zone::projectA
+    <span style="color:#66d9ef">id</span>: YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">value</span>: <span style="color:#ae81ff">1</span>
+  - <span style="color:#66d9ef">name</span>: system::load balancer1
+    <span style="color:#66d9ef">id</span>: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMQ==.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">value</span>: <span style="color:#ae81ff">0</span>
+  - <span style="color:#66d9ef">name</span>: system::load balancer2
+    <span style="color:#66d9ef">id</span>: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMg==.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">value</span>: <span style="color:#ae81ff">0</span>
+</code></pre></div><p>and will report an error when validating this data, because there is no element with a value greater than 0:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#75715e"># actual.data.yaml</span>
+<span style="color:#66d9ef">metrics</span>:
+  - <span style="color:#66d9ef">name</span>: business-zone::projectA
+    <span style="color:#66d9ef">id</span>: YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">value</span>: <span style="color:#ae81ff">0</span>
+  - <span style="color:#66d9ef">name</span>: system::load balancer1
+    <span style="color:#66d9ef">id</span>: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMQ==.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">value</span>: <span style="color:#ae81ff">0</span>
+  - <span style="color:#66d9ef">name</span>: system::load balancer2
+    <span style="color:#66d9ef">id</span>: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMg==.<span style="color:#ae81ff">1</span>
+    <span style="color:#66d9ef">value</span>: <span style="color:#ae81ff">0</span>
+</code></pre></div><p>The <code>contains</code> does an unordered list verification, in order to do list verifications including orders, you can simply use the basic ruls like this:</p>
+<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#75715e"># expected.data.yaml</span>
+<span style="color:#66d9ef">metrics</span>:
+  - <span style="color:#66d9ef">name</span>: p99
+    <span style="color:#66d9ef">value</span>: {{ gt (index .metrics <span style="color:#ae81ff">0</span>).value <span style="color:#ae81ff">0</span> }}
+  - <span style="color:#66d9ef">name</span>: p95
+    <span style="color:#66d9ef">value</span>: {{ gt (index .metrics <span style="color:#ae81ff">1</span>).value <span style="color:#ae81ff">0</span> }}
+</code></pre></div><p>which expects the actual <code>metrics</code> list to be exactly ordered, with first element named <code>p99</code> and <code>value</code> greater 0, second element named <code>p95</code> and <code>value</code> greater 0.</p>
 
 	
 
 	<ul class="list-unstyled d-flex justify-content-between align-items-center mb-0 pt-5">
   <li>
-    <a href="/blog/2019-01-25-mesh-loadtest/" class="btn btn-primary "><span class="mr-1">←</span> Previous</a>
+    <a href="/blog/2021-01-23-tencent-cloud-violates-aplv2/" class="btn btn-primary "><span class="mr-1">←</span> Previous</a>
   </li>
-    <a href="/blog/2020-01-20-celebrate-200th-contributor/" class="btn btn-primary ">Next <span class="ml-1">→</span></a>
+    <a  class="btn btn-primary  disabled">Next <span class="ml-1">→</span></a>
   </li>
 </ul>
 
@@ -313,7 +407,7 @@ bash build/build.sh
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
         </li>
         
         <li>
@@ -363,9 +457,20 @@ bash build/build.sh
 <nav id="TableOfContents">
   <ul>
     <li><a href="#background">Background</a></li>
-    <li><a href="#demonstration">Demonstration</a></li>
-    <li><a href="#introduction">Introduction</a></li>
-    <li><a href="#collaboration">Collaboration</a></li>
+    <li><a href="#design-thinking">Design Thinking</a></li>
+    <li><a href="#branches--actions">Branches / Actions</a>
+      <ul>
+        <li><a href="#list-elements-match">List Elements Match</a></li>
+      </ul>
+    </li>
+    <li><a href="#functions">Functions</a>
+      <ul>
+        <li><a href="#not-empty">Not Empty</a></li>
+        <li><a href="#regexp-match">Regexp match</a></li>
+        <li><a href="#base64">Base64</a></li>
+      </ul>
+    </li>
+    <li><a href="#full-example">Full Example</a></li>
   </ul>
 </nav>
 
diff --git a/blog/e2e-design/index.html b/blog/e2e-design/index.html
index a9d1aec..e5ab9e2 100644
--- a/blog/e2e-design/index.html
+++ b/blog/e2e-design/index.html
@@ -24,11 +24,11 @@
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/blog/e2e-design/" />
 <meta property="article:published_time" content="2020-12-14T00:00:00+00:00" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="[Design] NGE2E - Next Generation End-to-End Testing Framework">
 <meta itemprop="description" content="The design of Next Generation End-to-End Testing Framework">
 <meta itemprop="datePublished" content="2020-12-14T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="wordCount" content="1448">
 
 
@@ -512,7 +512,7 @@ func run() {
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
         </li>
         
         <li>
diff --git a/blog/index.html b/blog/index.html
index d8ae510..e8b487e 100644
--- a/blog/index.html
+++ b/blog/index.html
@@ -173,6 +173,23 @@ if (!doNotTrack) {
 			
 			<li class="media mb-4">
 				<div class="media-body">
+					<h5 class="mt-0 mb-1"><a href="/blog/2021-02-01-e2e-verifier-design/">[Design] The Verifier of NGE2E</a></h5>
+					<p class="mb-2 mb-md-3"><small class="text-muted">Monday, February 01, 2021 in Blog</small></p>
+					
+
+
+
+
+
+					<p class="pt-0 mt-0">Background The verifier is an important part of the next generation End-to-End Testing framework (NGE2E), which is responsible for verifying whether the actual output satisfies the expected template.
+Design Thinking We will implement the verifier …</p>
+					<p class="pt-0 mt-0">The design of Next Generation End-to-End Testing Framework  Verifier</p>
+					<p class="pt-0"><a href="/blog/2021-02-01-e2e-verifier-design/">Read more</a></p>
+				</div>
+			</li>
+			
+			<li class="media mb-4">
+				<div class="media-body">
 					<h5 class="mt-0 mb-1"><a href="/blog/2021-01-23-tencent-cloud-violates-aplv2/">[Resolved][License Issue] Tencent Cloud TSW service violates the Apache 2.0 License when using SkyWalking.</a></h5>
 					<p class="mb-2 mb-md-3"><small class="text-muted">Friday, January 22, 2021 in Blog</small></p>
 					
@@ -323,22 +340,6 @@ Just 11 months ago, on Jan. 20th, 2020, SkyWalking hit the 200 contributors mark
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 			</li>
 			
-			<li class="media mb-4">
-				<div class="media-body">
-					<h5 class="mt-0 mb-1"><a href="/blog/2020-11-21-apachecon-obs-shardingsphere/">[Video] Another backend storage solution for the APM system</a></h5>
-					<p class="mb-2 mb-md-3"><small class="text-muted">Saturday, November 21, 2020 in Blog</small></p>
-					
-
-
-
-
-
-					<p class="pt-0 mt-0">The APM system provides the tracing or metrics for distributed systems or microservice architectures. Back to APM themselves, they always need backend storage to store the necessary massive data. What are the features required for backend storage? …</p>
-					<p class="pt-0 mt-0">ApacheCon@Home 2020 Observability Track</p>
-					<p class="pt-0"><a href="/blog/2020-11-21-apachecon-obs-shardingsphere/">Read more</a></p>
-				</div>
-			</li>
-			
 		</ul>
 		
 	</div>
@@ -451,7 +452,7 @@ Just 11 months ago, on Jan. 20th, 2020, SkyWalking hit the 200 contributors mark
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
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diff --git a/blog/index.xml b/blog/index.xml
index 768d6c4..52b12de 100644
--- a/blog/index.xml
+++ b/blog/index.xml
@@ -14,6 +14,151 @@
     
     
     <item>
+      <title>Blog: [Design] The Verifier of NGE2E</title>
+      <link>/blog/2021-02-01-e2e-verifier-design/</link>
+      <pubDate>Mon, 01 Feb 2021 00:00:00 +0000</pubDate>
+      
+      <guid>/blog/2021-02-01-e2e-verifier-design/</guid>
+      <description>
+        
+        
+        &lt;h2 id=&#34;background&#34;&gt;Background&lt;/h2&gt;
+&lt;p&gt;The verifier is an important part of the next generation End-to-End Testing framework (NGE2E), which is responsible for verifying whether the actual output satisfies the expected template.&lt;/p&gt;
+&lt;h2 id=&#34;design-thinking&#34;&gt;Design Thinking&lt;/h2&gt;
+&lt;p&gt;We will implement the verifier with &lt;a href=&#34;https://golang.org/pkg/text/template/&#34;&gt;Go template&lt;/a&gt;, plus some enhancements. Firstly, users need to write a Go template file with provided functions and actions to describe how the expected data looks like. Then the verifer renders the template with the actual data object. Finally, the verifier compares the rendered output with the actual data. If the rendered output is not the same with the actual output, it me [...]
+&lt;h2 id=&#34;branches--actions&#34;&gt;Branches / Actions&lt;/h2&gt;
+&lt;p&gt;The verifier inherits all the actions from the standard Go template, such as &lt;code&gt;if&lt;/code&gt;, &lt;code&gt;with&lt;/code&gt;, &lt;code&gt;range&lt;/code&gt;, etc. In addition, we also provide some custom actions to satisfy our own needs.&lt;/p&gt;
+&lt;h3 id=&#34;list-elements-match&#34;&gt;List Elements Match&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;contains&lt;/code&gt; checks if the actual list contains elements that match the given template.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: {{ notEmpty .name }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;It means that the list &lt;code&gt;metrics&lt;/code&gt; must contain an element whose &lt;code&gt;name&lt;/code&gt; and &lt;code&gt;id&lt;/code&gt; are not empty, and &lt;code&gt;value&lt;/code&gt; is greater than &lt;code&gt;0&lt;/code&gt;.&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p95
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p99
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;This means that the list &lt;code&gt;metrics&lt;/code&gt; must contain an element named &lt;code&gt;p95&lt;/code&gt; with a &lt;code&gt;value&lt;/code&gt; greater than 0, and an element named &lt;code&gt;p95&lt;/code&gt; with a &lt;code&gt;value&lt;/code&gt; greater than 0. Besides the two element, the list &lt;code&gt;metrics&lt;/code&gt; may or may not have other random elements.&lt;/p&gt;
+&lt;h2 id=&#34;functions&#34;&gt;Functions&lt;/h2&gt;
+&lt;p&gt;Users can use these provided functions in the template to describe the expected data.&lt;/p&gt;
+&lt;h3 id=&#34;not-empty&#34;&gt;Not Empty&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;notEmpty&lt;/code&gt; checks if the string &lt;code&gt;s&lt;/code&gt; is empty.&lt;/p&gt;
+&lt;p&gt;Example:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h3 id=&#34;regexp-match&#34;&gt;Regexp match&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;regexp&lt;/code&gt; checks if string &lt;code&gt;s&lt;/code&gt; matches the regular expression pattern.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;label&lt;/span&gt;: {{ regexp .label &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;ratings.*&amp;#34;&lt;/span&gt; }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h3 id=&#34;base64&#34;&gt;Base64&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;b64enc s&lt;/code&gt; returns the Base64 encoded string of s.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.static-suffix &lt;span style=&#34;color:#75715e&#34;&gt;# this evalutes the base64 encoded string of &amp;#34;User&amp;#34;, concat [...]
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;Result:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.static-suffix
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h2 id=&#34;full-example&#34;&gt;Full Example&lt;/h2&gt;
+&lt;p&gt;Here is an example of expected data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;nodes&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: User
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: USER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: Your_ApplicationName
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: Tomcat
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;true&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ $h2ID := (index .nodes &lt;span style=&#34;color:#ae81ff&#34;&gt;2&lt;/span&gt;).id }}{{ notEmpty $h2ID }} &lt;span style=&#34;color:#75715e&#34;&gt;# We assert that nodes[2].id is not empty and save it to variable `h2ID` for later use&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: localhost:-&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: H2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;calls&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty (index .calls &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;).id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: {{ $h2ID }} &lt;span style=&#34;color:#75715e&#34;&gt;# We use the previously assigned variable `h2Id` to asert that the `target` is equal to the `id` of the nodes[2]&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - CLIENT
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;-{{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - SERVER
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;will validate this data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;nodes&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: User
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: USER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: Your_ApplicationName
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: Tomcat
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;true&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: localhost:-&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: H2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;calls&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;-bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - CLIENT
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;-WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - SERVER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: {{ notEmpty .name }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;will validate this data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: business-zone::projectA
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer1
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMQ==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;and will report an error when validating this data, because there is no element with a value greater than 0:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: business-zone::projectA
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer1
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMQ==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;The &lt;code&gt;contains&lt;/code&gt; does an unordered list verification, in order to do list verifications including orders, you can simply use the basic ruls like this:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p99
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt (index .metrics &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;).value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p95
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt (index .metrics &lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;).value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;which expects the actual &lt;code&gt;metrics&lt;/code&gt; list to be exactly ordered, with first element named &lt;code&gt;p99&lt;/code&gt; and &lt;code&gt;value&lt;/code&gt; greater 0, second element named &lt;code&gt;p95&lt;/code&gt; and &lt;code&gt;value&lt;/code&gt; greater 0.&lt;/p&gt;
+
+      </description>
+    </item>
+    
+    <item>
       <title>Blog: [Resolved][License Issue] Tencent Cloud TSW service violates the Apache 2.0 License when using SkyWalking.</title>
       <link>/blog/2021-01-23-tencent-cloud-violates-aplv2/</link>
       <pubDate>Fri, 22 Jan 2021 00:00:00 +0000</pubDate>
diff --git a/blog/page/2/index.html b/blog/page/2/index.html
index 6b88aee..bc700ca 100644
--- a/blog/page/2/index.html
+++ b/blog/page/2/index.html
@@ -172,6 +172,22 @@ if (!doNotTrack) {
 			
 			<li class="media mb-4">
 				<div class="media-body">
+					<h5 class="mt-0 mb-1"><a href="/blog/2020-11-21-apachecon-obs-shardingsphere/">[Video] Another backend storage solution for the APM system</a></h5>
+					<p class="mb-2 mb-md-3"><small class="text-muted">Saturday, November 21, 2020 in Blog</small></p>
+					
+
+
+
+
+
+					<p class="pt-0 mt-0">The APM system provides the tracing or metrics for distributed systems or microservice architectures. Back to APM themselves, they always need backend storage to store the necessary massive data. What are the features required for backend storage? …</p>
+					<p class="pt-0 mt-0">ApacheCon@Home 2020 Observability Track</p>
+					<p class="pt-0"><a href="/blog/2020-11-21-apachecon-obs-shardingsphere/">Read more</a></p>
+				</div>
+			</li>
+			
+			<li class="media mb-4">
+				<div class="media-body">
 					<h5 class="mt-0 mb-1"><a href="/blog/2020-11-21-apachecon-keynote/">[Video] Apache grows in China</a></h5>
 					<p class="mb-2 mb-md-3"><small class="text-muted">Friday, November 20, 2020 in Blog</small></p>
 					
@@ -322,22 +338,6 @@ dingtalk message body …</p>
 				</div>
 			</li>
 			
-			<li class="media mb-4">
-				<div class="media-body">
-					<h5 class="mt-0 mb-1"><a href="/blog/2019-01-01-understand-trace/">Understand distributed trace easier in the incoming 6-GA</a></h5>
-					<p class="mb-2 mb-md-3"><small class="text-muted">Tuesday, January 01, 2019 in Blog</small></p>
-					
-
-
-
-
-
-					<p class="pt-0 mt-0">Background Distributed tracing is a necessary part of modern microservices architecture, but how to understand or use distributed tracing data is unclear to some end users. This blog overviews typical distributed tracing use cases with new …</p>
-					<p class="pt-0 mt-0">Distributed tracing is a necessary part of modern microservices architecture, but how to understand or use distributed tracing data is unclear to some end users. This blog overviews typical distributed tracing use cases with new visualization features in SkyWalking v6.</p>
-					<p class="pt-0"><a href="/blog/2019-01-01-understand-trace/">Read more</a></p>
-				</div>
-			</li>
-			
 		</ul>
 		
 	</div>
@@ -450,7 +450,7 @@ dingtalk message body …</p>
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
         </li>
         
         <li>
diff --git a/blog/page/3/index.html b/blog/page/3/index.html
index df7d26f..dd727aa 100644
--- a/blog/page/3/index.html
+++ b/blog/page/3/index.html
@@ -167,6 +167,27 @@ if (!doNotTrack) {
 <div class="row">
 	<div class="col-12">
 		
+		<h2>Posts in 2019</h2>
+		<ul class="list-unstyled mt-4">
+			
+			<li class="media mb-4">
+				<div class="media-body">
+					<h5 class="mt-0 mb-1"><a href="/blog/2019-01-01-understand-trace/">Understand distributed trace easier in the incoming 6-GA</a></h5>
+					<p class="mb-2 mb-md-3"><small class="text-muted">Tuesday, January 01, 2019 in Blog</small></p>
+					
+
+
+
+
+
+					<p class="pt-0 mt-0">Background Distributed tracing is a necessary part of modern microservices architecture, but how to understand or use distributed tracing data is unclear to some end users. This blog overviews typical distributed tracing use cases with new …</p>
+					<p class="pt-0 mt-0">Distributed tracing is a necessary part of modern microservices architecture, but how to understand or use distributed tracing data is unclear to some end users. This blog overviews typical distributed tracing use cases with new visualization features in SkyWalking v6.</p>
+					<p class="pt-0"><a href="/blog/2019-01-01-understand-trace/">Read more</a></p>
+				</div>
+			</li>
+			
+		</ul>
+		
 		<h2>Posts in 2018</h2>
 		<ul class="list-unstyled mt-4">
 			
@@ -317,7 +338,7 @@ In many big systems, distributed and especially microservice architectures becom
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
         </li>
         
         <li>
diff --git a/events/release-apache-skwaylking-apm-8-3-0/index.html b/events/release-apache-skwaylking-apm-8-3-0/index.html
index e31e3bf..056ed2e 100644
--- a/events/release-apache-skwaylking-apm-8-3-0/index.html
+++ b/events/release-apache-skwaylking-apm-8-3-0/index.html
@@ -24,11 +24,11 @@
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/events/release-apache-skwaylking-apm-8-3-0/" />
 <meta property="article:published_time" content="2020-12-02T00:00:00+00:00" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Release Apache SkyWalking APM 8.3.0">
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 <meta itemprop="datePublished" content="2020-12-02T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/release-apache-skywalking-5-0-0-beta/index.html b/events/release-apache-skywalking-5-0-0-beta/index.html
index b8bf441..faddb0d 100644
--- a/events/release-apache-skywalking-5-0-0-beta/index.html
+++ b/events/release-apache-skywalking-5-0-0-beta/index.html
@@ -24,11 +24,11 @@
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
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 <meta itemprop="description" content="5.0.0-beta release. Go to downloads page to find release tars.">
 <meta itemprop="datePublished" content="2018-05-23T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/release-apache-skywalking-5-0-0-beta2/index.html b/events/release-apache-skywalking-5-0-0-beta2/index.html
index 6867892..891a6ba 100644
--- a/events/release-apache-skywalking-5-0-0-beta2/index.html
+++ b/events/release-apache-skywalking-5-0-0-beta2/index.html
@@ -24,11 +24,11 @@
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
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 <meta itemprop="datePublished" content="2018-07-11T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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index 8f89bcf..989a9fe 100644
--- a/events/release-apache-skywalking-5-0-0-ga/index.html
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
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 <meta itemprop="description" content="A stable version of 5.x release. Go to downloads page to find release tars.">
 <meta itemprop="datePublished" content="2018-10-17T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/release-apache-skywalking-5-0-0-rc2/index.html b/events/release-apache-skywalking-5-0-0-rc2/index.html
index ccefa7b..72fef1d 100644
--- a/events/release-apache-skywalking-5-0-0-rc2/index.html
+++ b/events/release-apache-skywalking-5-0-0-rc2/index.html
@@ -24,11 +24,11 @@
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Release Apache SkyWalking 5.0.0-RC2">
 <meta itemprop="description" content="5.0.0-RC2 release. Go to downloads page to find release tars.">
 <meta itemprop="datePublished" content="2018-09-12T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/release-apache-skywalking-6-0-0-alpha/index.html b/events/release-apache-skywalking-6-0-0-alpha/index.html
index a7fa037..b313c20 100644
--- a/events/release-apache-skywalking-6-0-0-alpha/index.html
+++ b/events/release-apache-skywalking-6-0-0-alpha/index.html
@@ -24,11 +24,11 @@
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/events/release-apache-skywalking-6-0-0-alpha/" />
 <meta property="article:published_time" content="2018-11-14T00:00:00+00:00" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Release Apache SkyWalking 6.0.0-alpha">
 <meta itemprop="description" content="APM consistently compatible in language agent(Java, .Net, NodeJS), 3rd party format(Zipkin) and service mesh telemetry(Istio). Go to downloads page to find release tars.">
 <meta itemprop="datePublished" content="2018-11-14T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/release-apache-skywalking-apm-5-0-0-alpha/index.html b/events/release-apache-skywalking-apm-5-0-0-alpha/index.html
index 0c9414c..dc99e62 100644
--- a/events/release-apache-skywalking-apm-5-0-0-alpha/index.html
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@@ -24,11 +24,11 @@
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
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 <meta itemprop="description" content="5.0.0-alpha release. Go to downloads page to find release tars.">
 <meta itemprop="datePublished" content="2018-04-03T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/release-apache-skywalking-apm-6-0-0-beta/index.html b/events/release-apache-skywalking-apm-6-0-0-beta/index.html
index d5bcfa2..a6b3989 100644
--- a/events/release-apache-skywalking-apm-6-0-0-beta/index.html
+++ b/events/release-apache-skywalking-apm-6-0-0-beta/index.html
@@ -26,13 +26,13 @@ Key updates
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/events/release-apache-skywalking-apm-6-0-0-beta/" />
 <meta property="article:published_time" content="2018-12-25T00:00:00+00:00" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Release Apache SkyWalking APM 6.0.0-beta">
 <meta itemprop="description" content="6.0.0-beta release. Go to downloads page to find release tars.
 Key updates
  Bugs fixed, closed to GA New protocols provided, old still compatible. Spring 5 supported MySQL and TiDB as optional storage  ">
 <meta itemprop="datePublished" content="2018-12-25T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/release-apache-skywalking-apm-6-0-0-ga/index.html b/events/release-apache-skywalking-apm-6-0-0-ga/index.html
index a857ac8..bc68969 100644
--- a/events/release-apache-skywalking-apm-6-0-0-ga/index.html
+++ b/events/release-apache-skywalking-apm-6-0-0-ga/index.html
@@ -26,13 +26,13 @@ Key updates
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/events/release-apache-skywalking-apm-6-0-0-ga/" />
 <meta property="article:published_time" content="2019-01-29T00:00:00+00:00" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Release Apache SkyWalking APM 6.0.0-GA">
 <meta itemprop="description" content="6.0.0-GA release. Go to downloads page to find release tars. This is an important milestone version, we recommend all users upgrade to this version.
 Key updates
  Bug fixed Register bug fix, refactor and performance improvement New trace UI  ">
 <meta itemprop="datePublished" content="2019-01-29T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/release-apache-skywalking-apm-6-1-0/index.html b/events/release-apache-skywalking-apm-6-1-0/index.html
index e2273d1..ecc7569 100644
--- a/events/release-apache-skywalking-apm-6-1-0/index.html
+++ b/events/release-apache-skywalking-apm-6-1-0/index.html
@@ -26,13 +26,13 @@ Key updates
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/events/release-apache-skywalking-apm-6-1-0/" />
 <meta property="article:published_time" content="2019-05-05T00:00:00+00:00" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Release Apache SkyWalking APM 6.1.0">
 <meta itemprop="description" content="6.1.0 release. Go to downloads page to find release tars. This is the first top level project version.
 Key updates
  RocketBot UI OAP performance improvement  ">
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diff --git a/events/release-apache-skywalking-apm-6-2-0/index.html b/events/release-apache-skywalking-apm-6-2-0/index.html
index f02c283..ae375e1 100644
--- a/events/release-apache-skywalking-apm-6-2-0/index.html
+++ b/events/release-apache-skywalking-apm-6-2-0/index.html
@@ -25,12 +25,12 @@ Read changelog for the details." />
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/events/release-apache-skywalking-apm-6-2-0/" />
 <meta property="article:published_time" content="2019-07-02T00:00:00+00:00" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Release Apache SkyWalking APM 6.2.0">
 <meta itemprop="description" content="6.2.0 release. Go to downloads page to find release tars. ElasticSearch storage implementation changed, high reduce payload to ElasticSearch cluster.
 Read changelog for the details.">
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-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/release-apache-skywalking-apm-6-3-0/index.html b/events/release-apache-skywalking-apm-6-3-0/index.html
index c28feaf..afe1266 100644
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+++ b/events/release-apache-skywalking-apm-6-3-0/index.html
@@ -25,12 +25,12 @@
 <meta property="og:type" content="article" />
 <meta property="og:url" content="/events/release-apache-skywalking-apm-6-3-0/" />
 <meta property="article:published_time" content="2019-08-08T00:00:00+00:00" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Release Apache SkyWalking APM 6.3.0">
 <meta itemprop="description" content="6.3.0 release. Go to downloads page to find release tars.
  Improve ElasticSearch storage implementation performance again. OAP backend re-install w/o agent reboot required.  Read changelog for the details.">
 <meta itemprop="datePublished" content="2019-08-08T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/skywalking-graduated-as-apache-top-level-project/index.html b/events/skywalking-graduated-as-apache-top-level-project/index.html
index f7b5a1f..c88b4cc 100644
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diff --git a/events/skywalking-nginx-lua-0-1-0-release/index.html b/events/skywalking-nginx-lua-0-1-0-release/index.html
index 8f59297..24d9553 100644
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diff --git a/events/transfer-docker-images-to-apache-official-repository/index.html b/events/transfer-docker-images-to-apache-official-repository/index.html
index 58ef694..145e7ca 100644
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diff --git a/events/welcome-gui-cao-as-new-committer/index.html b/events/welcome-gui-cao-as-new-committer/index.html
index 7220057..96ab275 100644
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 <meta itemprop="datePublished" content="2020-12-04T00:00:00+00:00" />
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diff --git a/events/welcome-han-liu-as-new-committer/index.html b/events/welcome-han-liu-as-new-committer/index.html
index 95c7daf..73f9919 100644
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 <meta itemprop="name" content="Welcome Han Liu as new committer">
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diff --git a/events/welcome-haochao-zhuang-as-new-committer/index.html b/events/welcome-haochao-zhuang-as-new-committer/index.html
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diff --git a/events/welcome-hongwei-zhai-to-join-the-pmc/index.html b/events/welcome-hongwei-zhai-to-join-the-pmc/index.html
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diff --git a/events/welcome-huaxi-jiang-as-new-committer/index.html b/events/welcome-huaxi-jiang-as-new-committer/index.html
index 3708917..3fc372f 100644
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 <meta itemprop="datePublished" content="2020-09-28T00:00:00+00:00" />
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diff --git a/events/welcome-jian-tan-as-a-new-committer/index.html b/events/welcome-jian-tan-as-a-new-committer/index.html
index ccd1400..81ae493 100644
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diff --git a/events/welcome-jinlin-fu-as-new-committer/index.html b/events/welcome-jinlin-fu-as-new-committer/index.html
index 830c2a8..993a21c 100644
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index e1b6d27..75292b3 100644
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diff --git a/events/welcome-lang-li-as-a-new-committer/index.html b/events/welcome-lang-li-as-a-new-committer/index.html
index 217646a..bc37962 100644
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diff --git a/events/welcome-ming-wen-as-new-committer/index.html b/events/welcome-ming-wen-as-new-committer/index.html
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diff --git a/events/welcome-qiuxia-fan-as-new-committer/index.html b/events/welcome-qiuxia-fan-as-new-committer/index.html
index af50710..aadbbc6 100644
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index 2506df9..6740af3 100644
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+++ b/events/welcome-wei-hua-as-new-committer/index.html
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+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Wei Hua as new committer">
 <meta itemprop="description" content="Based on his continuous contributions, Wei Hua (a.k.a alonelaval) has been voted as a new committer.">
 <meta itemprop="datePublished" content="2020-08-01T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/welcome-wei-zhang-as-new-committer/index.html b/events/welcome-wei-zhang-as-new-committer/index.html
index 4749f53..7cb8aa2 100644
--- a/events/welcome-wei-zhang-as-new-committer/index.html
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+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Wei Zhang as new committer">
 <meta itemprop="description" content="Based on his continuous contributions, Wei Zhang (a.k.a arugal) has been voted as a new committer.">
 <meta itemprop="datePublished" content="2019-11-14T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/welcome-wei-zhang-to-join-the-pmc/index.html b/events/welcome-wei-zhang-to-join-the-pmc/index.html
index 3123839..fe2121b 100644
--- a/events/welcome-wei-zhang-to-join-the-pmc/index.html
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+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Wei Zhang to join the PMC">
 <meta itemprop="description" content="Based on his continuous contributions, Wei Zhang (a.k.a arugal) has been invited to join the PMC. Welcome aboard.">
 <meta itemprop="datePublished" content="2020-04-20T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/welcome-weijie-zou-as-a-new-committer/index.html b/events/welcome-weijie-zou-as-a-new-committer/index.html
index 51346fb..5771a0f 100644
--- a/events/welcome-weijie-zou-as-a-new-committer/index.html
+++ b/events/welcome-weijie-zou-as-a-new-committer/index.html
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+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Weijie Zou as a new committer">
 <meta itemprop="description" content="Based on his contributions to the skywalking ui project, Weijie Zou (a.k.a Kdump) has been accepted as a new committer.">
 <meta itemprop="datePublished" content="2019-09-10T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/welcome-weiyi-liu-as-new-committer/index.html b/events/welcome-weiyi-liu-as-new-committer/index.html
index 71592fb..e8519a8 100644
--- a/events/welcome-weiyi-liu-as-new-committer/index.html
+++ b/events/welcome-weiyi-liu-as-new-committer/index.html
@@ -24,11 +24,11 @@
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Weiyi Liu as new committer">
 <meta itemprop="description" content="Based on his continuous contributions, Weiyi Liu (a.k.a wayilau) has been voted as a new committer.">
 <meta itemprop="datePublished" content="2019-12-10T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/welcome-yanlong-he-as-a-new-committer/index.html b/events/welcome-yanlong-he-as-a-new-committer/index.html
index 0287292..0258229 100644
--- a/events/welcome-yanlong-he-as-a-new-committer/index.html
+++ b/events/welcome-yanlong-he-as-a-new-committer/index.html
@@ -24,11 +24,11 @@
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Yanlong He as a new committer">
 <meta itemprop="description" content="Based on his contributions to the skywalking PHP project, Yanlong He (a.k.a heyanlong has been accepted as a new committer.">
 <meta itemprop="datePublished" content="2019-08-09T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/welcome-yao-wang-as-a-new-ppmc/index.html b/events/welcome-yao-wang-as-a-new-ppmc/index.html
index 23f75e2..ead095a 100644
--- a/events/welcome-yao-wang-as-a-new-ppmc/index.html
+++ b/events/welcome-yao-wang-as-a-new-ppmc/index.html
@@ -24,11 +24,11 @@
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 <meta property="og:url" content="/events/welcome-yao-wang-as-a-new-ppmc/" />
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Yao Wang as a new PPMC">
 <meta itemprop="description" content="Based on his contributions. Including created RocketBot as our secondary UI, new website and very cool trace view page in next release. he has been accepted as SkyWalking PPMC. Welcome aboard.">
 <meta itemprop="datePublished" content="2018-12-22T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/welcome-yixiong-cao-as-a-new-committer/index.html b/events/welcome-yixiong-cao-as-a-new-committer/index.html
index 0005beb..0a940d9 100644
--- a/events/welcome-yixiong-cao-as-a-new-committer/index.html
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Yixiong Cao as a new committer">
 <meta itemprop="description" content="Based on his contributions to the project, he has been accepted as SkyWalking committer. Welcome aboard.">
 <meta itemprop="datePublished" content="2018-12-10T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/welcome-yuguang-zhao-as-a-new-committer/index.html b/events/welcome-yuguang-zhao-as-a-new-committer/index.html
index c545e1c..58d2c25 100644
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+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Yuguang Zhao as a new committer">
 <meta itemprop="description" content="Based on his continuous contributions, he has been accepted as a new committer.">
 <meta itemprop="datePublished" content="2019-04-15T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/events/welcome-yuguang-zhao-to-join-the-pmc/index.html b/events/welcome-yuguang-zhao-to-join-the-pmc/index.html
index f23b187..3200fee 100644
--- a/events/welcome-yuguang-zhao-to-join-the-pmc/index.html
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Yuguang Zhao to join the PMC">
 <meta itemprop="description" content="Based on his continuous contributions, Yuguang Zhao (a.k.a zhaoyuguang) has been invited to join the PMC. Welcome aboard.">
 <meta itemprop="datePublished" content="2019-08-27T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/welcome-zhenxu-ke-as-a-new-committer/index.html b/events/welcome-zhenxu-ke-as-a-new-committer/index.html
index eb406ef..9bd6235 100644
--- a/events/welcome-zhenxu-ke-as-a-new-committer/index.html
+++ b/events/welcome-zhenxu-ke-as-a-new-committer/index.html
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Zhenxu Ke as a new committer">
 <meta itemprop="description" content="Based on his continuous contributions, Zhenxu Ke (a.k.a kezhenxu94) has been voted as a new committer.">
 <meta itemprop="datePublished" content="2019-06-17T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/welcome-zhenxu-ke-to-join-the-pmc/index.html b/events/welcome-zhenxu-ke-to-join-the-pmc/index.html
index 89afca0..42b8966 100644
--- a/events/welcome-zhenxu-ke-to-join-the-pmc/index.html
+++ b/events/welcome-zhenxu-ke-to-join-the-pmc/index.html
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Zhenxu Ke to join the PMC">
 <meta itemprop="description" content="Based on his continuous contributions, Zhenxu Ke (a.k.a kezhenxu94) has been invited to join the PMC. Welcome aboard.">
 <meta itemprop="datePublished" content="2019-08-23T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
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diff --git a/events/welcome-zhusheng-xu-as-new-committer/index.html b/events/welcome-zhusheng-xu-as-new-committer/index.html
index b77c9da..2509b01 100644
--- a/events/welcome-zhusheng-xu-as-new-committer/index.html
+++ b/events/welcome-zhusheng-xu-as-new-committer/index.html
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-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Welcome Zhusheng Xu as new committer">
 <meta itemprop="description" content="Based on his continuous contributions, Zhusheng Xu (a.k.a aderm) has been voted as a new committer.">
 <meta itemprop="datePublished" content="2020-02-21T00:00:00+00:00" />
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
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diff --git a/false/index.html b/false/index.html
index 93f938d..0865da6 100644
--- a/false/index.html
+++ b/false/index.html
@@ -238,7 +238,7 @@ if (!doNotTrack) {
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
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         <li>
diff --git a/index.json b/index.json
index f76c313..4cee4b9 100644
--- a/index.json
+++ b/index.json
@@ -1 +1 @@
-[{"body":"SkyWalking 8.4.0 is released. Go to downloads page to find release tars. Changes by Version\nProject  Incompatible with previous releases when use H2/MySQL/TiDB storage options, due to support multiple alarm rules triggered for one entity. Chore: adapt create_source_release.sh to make it runnable on Linux. Add package to .proto files, prevent polluting top-level namespace in some languages; The OAP server supports previous agent releases, whereas the previous OAP server (\u0026 [...]
\ No newline at end of file
+[{"body":"SkyWalking 8.4.0 is released. Go to downloads page to find release tars. Changes by Version\nProject  Incompatible with previous releases when use H2/MySQL/TiDB storage options, due to support multiple alarm rules triggered for one entity. Chore: adapt create_source_release.sh to make it runnable on Linux. Add package to .proto files, prevent polluting top-level namespace in some languages; The OAP server supports previous agent releases, whereas the previous OAP server (\u0026 [...]
\ No newline at end of file
diff --git a/index.xml b/index.xml
index 3d064d7..d55047b 100644
--- a/index.xml
+++ b/index.xml
@@ -13,6 +13,151 @@
     
     
     <item>
+      <title>Blog: [Design] The Verifier of NGE2E</title>
+      <link>/blog/2021-02-01-e2e-verifier-design/</link>
+      <pubDate>Mon, 01 Feb 2021 00:00:00 +0000</pubDate>
+      
+      <guid>/blog/2021-02-01-e2e-verifier-design/</guid>
+      <description>
+        
+        
+        &lt;h2 id=&#34;background&#34;&gt;Background&lt;/h2&gt;
+&lt;p&gt;The verifier is an important part of the next generation End-to-End Testing framework (NGE2E), which is responsible for verifying whether the actual output satisfies the expected template.&lt;/p&gt;
+&lt;h2 id=&#34;design-thinking&#34;&gt;Design Thinking&lt;/h2&gt;
+&lt;p&gt;We will implement the verifier with &lt;a href=&#34;https://golang.org/pkg/text/template/&#34;&gt;Go template&lt;/a&gt;, plus some enhancements. Firstly, users need to write a Go template file with provided functions and actions to describe how the expected data looks like. Then the verifer renders the template with the actual data object. Finally, the verifier compares the rendered output with the actual data. If the rendered output is not the same with the actual output, it me [...]
+&lt;h2 id=&#34;branches--actions&#34;&gt;Branches / Actions&lt;/h2&gt;
+&lt;p&gt;The verifier inherits all the actions from the standard Go template, such as &lt;code&gt;if&lt;/code&gt;, &lt;code&gt;with&lt;/code&gt;, &lt;code&gt;range&lt;/code&gt;, etc. In addition, we also provide some custom actions to satisfy our own needs.&lt;/p&gt;
+&lt;h3 id=&#34;list-elements-match&#34;&gt;List Elements Match&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;contains&lt;/code&gt; checks if the actual list contains elements that match the given template.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: {{ notEmpty .name }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;It means that the list &lt;code&gt;metrics&lt;/code&gt; must contain an element whose &lt;code&gt;name&lt;/code&gt; and &lt;code&gt;id&lt;/code&gt; are not empty, and &lt;code&gt;value&lt;/code&gt; is greater than &lt;code&gt;0&lt;/code&gt;.&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p95
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p99
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;This means that the list &lt;code&gt;metrics&lt;/code&gt; must contain an element named &lt;code&gt;p95&lt;/code&gt; with a &lt;code&gt;value&lt;/code&gt; greater than 0, and an element named &lt;code&gt;p95&lt;/code&gt; with a &lt;code&gt;value&lt;/code&gt; greater than 0. Besides the two element, the list &lt;code&gt;metrics&lt;/code&gt; may or may not have other random elements.&lt;/p&gt;
+&lt;h2 id=&#34;functions&#34;&gt;Functions&lt;/h2&gt;
+&lt;p&gt;Users can use these provided functions in the template to describe the expected data.&lt;/p&gt;
+&lt;h3 id=&#34;not-empty&#34;&gt;Not Empty&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;notEmpty&lt;/code&gt; checks if the string &lt;code&gt;s&lt;/code&gt; is empty.&lt;/p&gt;
+&lt;p&gt;Example:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h3 id=&#34;regexp-match&#34;&gt;Regexp match&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;regexp&lt;/code&gt; checks if string &lt;code&gt;s&lt;/code&gt; matches the regular expression pattern.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;label&lt;/span&gt;: {{ regexp .label &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;ratings.*&amp;#34;&lt;/span&gt; }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h3 id=&#34;base64&#34;&gt;Base64&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;b64enc s&lt;/code&gt; returns the Base64 encoded string of s.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.static-suffix &lt;span style=&#34;color:#75715e&#34;&gt;# this evalutes the base64 encoded string of &amp;#34;User&amp;#34;, concat [...]
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;Result:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.static-suffix
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h2 id=&#34;full-example&#34;&gt;Full Example&lt;/h2&gt;
+&lt;p&gt;Here is an example of expected data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;nodes&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: User
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: USER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: Your_ApplicationName
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: Tomcat
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;true&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ $h2ID := (index .nodes &lt;span style=&#34;color:#ae81ff&#34;&gt;2&lt;/span&gt;).id }}{{ notEmpty $h2ID }} &lt;span style=&#34;color:#75715e&#34;&gt;# We assert that nodes[2].id is not empty and save it to variable `h2ID` for later use&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: localhost:-&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: H2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;calls&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty (index .calls &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;).id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: {{ $h2ID }} &lt;span style=&#34;color:#75715e&#34;&gt;# We use the previously assigned variable `h2Id` to asert that the `target` is equal to the `id` of the nodes[2]&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - CLIENT
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;-{{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - SERVER
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;will validate this data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;nodes&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: User
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: USER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: Your_ApplicationName
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: Tomcat
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;true&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: localhost:-&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: H2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;calls&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;-bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - CLIENT
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;-WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - SERVER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: {{ notEmpty .name }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;will validate this data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: business-zone::projectA
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer1
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMQ==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;and will report an error when validating this data, because there is no element with a value greater than 0:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: business-zone::projectA
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer1
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMQ==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;The &lt;code&gt;contains&lt;/code&gt; does an unordered list verification, in order to do list verifications including orders, you can simply use the basic ruls like this:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p99
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt (index .metrics &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;).value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p95
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt (index .metrics &lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;).value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;which expects the actual &lt;code&gt;metrics&lt;/code&gt; list to be exactly ordered, with first element named &lt;code&gt;p99&lt;/code&gt; and &lt;code&gt;value&lt;/code&gt; greater 0, second element named &lt;code&gt;p95&lt;/code&gt; and &lt;code&gt;value&lt;/code&gt; greater 0.&lt;/p&gt;
+
+      </description>
+    </item>
+    
+    <item>
       <title>Blog: [Resolved][License Issue] Tencent Cloud TSW service violates the Apache 2.0 License when using SkyWalking.</title>
       <link>/blog/2021-01-23-tencent-cloud-violates-aplv2/</link>
       <pubDate>Fri, 22 Jan 2021 00:00:00 +0000</pubDate>
diff --git a/search/index.html b/search/index.html
index 504a506..5a897cf 100644
--- a/search/index.html
+++ b/search/index.html
@@ -23,10 +23,10 @@
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 <meta property="og:type" content="article" />
 <meta property="og:url" content="/search/" />
-<meta property="article:modified_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Search Results">
 <meta itemprop="description" content="">
-<meta itemprop="dateModified" content="2021-02-04T21:08:42+08:00" />
+<meta itemprop="dateModified" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="wordCount" content="0">
 
 
diff --git a/sitemap.xml b/sitemap.xml
index f4d9c5d..ac835c1 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -4,1218 +4,1225 @@
   
   <url>
     <loc>/events/release-apache-skywalking-apm-8-4-0/</loc>
-    <lastmod>2021-02-04T21:08:42+08:00</lastmod>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
+    <changefreq>daily</changefreq>
+    <priority>0.5</priority>
+  </url>
+  
+  <url>
+    <loc>/blog/2021-02-01-e2e-verifier-design/</loc>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
+    <changefreq>daily</changefreq>
+    <priority>0.5</priority>
+  </url>
+  
+  <url>
+    <loc>/tags/</loc>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
+    <changefreq>daily</changefreq>
+    <priority>0.5</priority>
+  </url>
+  
+  <url>
+    <loc>/tags/testing/</loc>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
     <changefreq>daily</changefreq>
     <priority>0.5</priority>
   </url>
   
   <url>
     <loc>/events/release-apache-skywalking-cloud-on-kubernetes-0-2-0/</loc>
-    <lastmod>2021-02-04T21:08:42+08:00</lastmod>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
     <changefreq>daily</changefreq>
     <priority>0.5</priority>
   </url>
   
   <url>
     <loc>/blog/2021-01-23-tencent-cloud-violates-aplv2/</loc>
-    <lastmod>2021-02-04T21:08:42+08:00</lastmod>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
     <changefreq>daily</changefreq>
     <priority>0.5</priority>
   </url>
   
   <url>
     <loc>/zh/2021-01-21-educate-community/</loc>
-    <lastmod>2021-02-04T21:08:42+08:00</lastmod>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
     <changefreq>daily</changefreq>
     <priority>0.5</priority>
   </url>
   
   <url>
     <loc>/zh_tags/conference/</loc>
-    <lastmod>2021-02-04T21:08:42+08:00</lastmod>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
     <changefreq>daily</changefreq>
     <priority>0.5</priority>
   </url>
   
   <url>
     <loc>/zh_tags/video/</loc>
-    <lastmod>2021-02-04T21:08:42+08:00</lastmod>
+    <lastmod>2021-02-05T13:53:01+08:00</lastmod>
     <changefreq>daily</changefreq>
     <priority>0.5</priority>
   </url>
   
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 <meta itemprop="name" content="Service Mesh">
 <meta itemprop="description" content="">
 <meta name="twitter:card" content="summary"/>
@@ -320,7 +320,7 @@ if (!doNotTrack) {
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
         </li>
         
         <li>
diff --git a/tags/spring/index.html b/tags/spring/index.html
index 87de69d..ba4643a 100644
--- a/tags/spring/index.html
+++ b/tags/spring/index.html
@@ -24,7 +24,7 @@
 <meta property="og:description" content="" />
 <meta property="og:type" content="website" />
 <meta property="og:url" content="/tags/spring/" />
-<meta property="og:updated_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="og:updated_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Spring">
 <meta itemprop="description" content="">
 <meta name="twitter:card" content="summary"/>
@@ -291,7 +291,7 @@ if (!doNotTrack) {
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
         </li>
         
         <li>
diff --git a/tags/testing/index.html b/tags/testing/index.html
index 54c6f0f..9931573 100644
--- a/tags/testing/index.html
+++ b/tags/testing/index.html
@@ -24,7 +24,7 @@
 <meta property="og:description" content="" />
 <meta property="og:type" content="website" />
 <meta property="og:url" content="/tags/testing/" />
-<meta property="og:updated_time" content="2021-02-04T21:08:42+08:00" />
+<meta property="og:updated_time" content="2021-02-05T13:53:01+08:00" />
 <meta itemprop="name" content="Testing">
 <meta itemprop="description" content="">
 <meta name="twitter:card" content="summary"/>
@@ -168,6 +168,37 @@ if (!doNotTrack) {
 <div class="row">
     <div class="col-12">
         
+        <h2>Posts in 2021</h2>
+
+        <ul class="list-unstyled mt-4">
+            
+            <li class="media mb-4">
+                <div class="media-body">
+                    <h5 class="mt-0 mb-1"><a href="/blog/2021-02-01-e2e-verifier-design/">[Design] The Verifier of NGE2E</a></h5>
+                    <p class="mb-2 mb-md-3"><small class="text-muted">Monday, February 01, 2021 in Blog</small>
+
+                        
+                        <small class="mt-1 tags-box">  |
+                        
+                        <span><a href="/tags/testing" class="tag-link">Testing</a></span>
+                        
+                        </small>
+                        
+
+                    </p>
+                    
+
+
+
+
+
+                    <p class="pt-0 mt-0">The design of Next Generation End-to-End Testing Framework  Verifier</p>
+                    <p class="pt-0"><a href="/blog/2021-02-01-e2e-verifier-design/">Read more</a></p>
+                </div>
+            </li>
+            
+        </ul>
+        
         <h2>Posts in 2020</h2>
 
         <ul class="list-unstyled mt-4">
@@ -320,7 +351,7 @@ if (!doNotTrack) {
         
         <li>
             <a href="/tags/testing/" class="tag-link">Testing</a>
-            <span class="count">2</span>
+            <span class="count">3</span>
         </li>
         
         <li>
diff --git a/tags/testing/index.xml b/tags/testing/index.xml
index 16605bd..58fc90b 100644
--- a/tags/testing/index.xml
+++ b/tags/testing/index.xml
@@ -4,7 +4,7 @@
     <link>/tags/testing/</link>
     <description>Recent content in Testing on Apache SkyWalking</description>
     <generator>Hugo -- gohugo.io</generator>
-    <lastBuildDate>Mon, 14 Dec 2020 00:00:00 +0000</lastBuildDate>
+    <lastBuildDate>Mon, 01 Feb 2021 00:00:00 +0000</lastBuildDate>
     
 	  <atom:link href="/tags/testing/index.xml" rel="self" type="application/rss+xml" />
     
@@ -15,6 +15,151 @@
     
     
     <item>
+      <title>Blog: [Design] The Verifier of NGE2E</title>
+      <link>/blog/2021-02-01-e2e-verifier-design/</link>
+      <pubDate>Mon, 01 Feb 2021 00:00:00 +0000</pubDate>
+      
+      <guid>/blog/2021-02-01-e2e-verifier-design/</guid>
+      <description>
+        
+        
+        &lt;h2 id=&#34;background&#34;&gt;Background&lt;/h2&gt;
+&lt;p&gt;The verifier is an important part of the next generation End-to-End Testing framework (NGE2E), which is responsible for verifying whether the actual output satisfies the expected template.&lt;/p&gt;
+&lt;h2 id=&#34;design-thinking&#34;&gt;Design Thinking&lt;/h2&gt;
+&lt;p&gt;We will implement the verifier with &lt;a href=&#34;https://golang.org/pkg/text/template/&#34;&gt;Go template&lt;/a&gt;, plus some enhancements. Firstly, users need to write a Go template file with provided functions and actions to describe how the expected data looks like. Then the verifer renders the template with the actual data object. Finally, the verifier compares the rendered output with the actual data. If the rendered output is not the same with the actual output, it me [...]
+&lt;h2 id=&#34;branches--actions&#34;&gt;Branches / Actions&lt;/h2&gt;
+&lt;p&gt;The verifier inherits all the actions from the standard Go template, such as &lt;code&gt;if&lt;/code&gt;, &lt;code&gt;with&lt;/code&gt;, &lt;code&gt;range&lt;/code&gt;, etc. In addition, we also provide some custom actions to satisfy our own needs.&lt;/p&gt;
+&lt;h3 id=&#34;list-elements-match&#34;&gt;List Elements Match&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;contains&lt;/code&gt; checks if the actual list contains elements that match the given template.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: {{ notEmpty .name }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;It means that the list &lt;code&gt;metrics&lt;/code&gt; must contain an element whose &lt;code&gt;name&lt;/code&gt; and &lt;code&gt;id&lt;/code&gt; are not empty, and &lt;code&gt;value&lt;/code&gt; is greater than &lt;code&gt;0&lt;/code&gt;.&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p95
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p99
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;This means that the list &lt;code&gt;metrics&lt;/code&gt; must contain an element named &lt;code&gt;p95&lt;/code&gt; with a &lt;code&gt;value&lt;/code&gt; greater than 0, and an element named &lt;code&gt;p95&lt;/code&gt; with a &lt;code&gt;value&lt;/code&gt; greater than 0. Besides the two element, the list &lt;code&gt;metrics&lt;/code&gt; may or may not have other random elements.&lt;/p&gt;
+&lt;h2 id=&#34;functions&#34;&gt;Functions&lt;/h2&gt;
+&lt;p&gt;Users can use these provided functions in the template to describe the expected data.&lt;/p&gt;
+&lt;h3 id=&#34;not-empty&#34;&gt;Not Empty&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;notEmpty&lt;/code&gt; checks if the string &lt;code&gt;s&lt;/code&gt; is empty.&lt;/p&gt;
+&lt;p&gt;Example:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h3 id=&#34;regexp-match&#34;&gt;Regexp match&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;regexp&lt;/code&gt; checks if string &lt;code&gt;s&lt;/code&gt; matches the regular expression pattern.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;label&lt;/span&gt;: {{ regexp .label &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;ratings.*&amp;#34;&lt;/span&gt; }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h3 id=&#34;base64&#34;&gt;Base64&lt;/h3&gt;
+&lt;p&gt;&lt;code&gt;b64enc s&lt;/code&gt; returns the Base64 encoded string of s.&lt;/p&gt;
+&lt;p&gt;Examples:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.static-suffix &lt;span style=&#34;color:#75715e&#34;&gt;# this evalutes the base64 encoded string of &amp;#34;User&amp;#34;, concat [...]
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;Result:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.static-suffix
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h2 id=&#34;full-example&#34;&gt;Full Example&lt;/h2&gt;
+&lt;p&gt;Here is an example of expected data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;nodes&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: User
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: USER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: Your_ApplicationName
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: Tomcat
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;true&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ $h2ID := (index .nodes &lt;span style=&#34;color:#ae81ff&#34;&gt;2&lt;/span&gt;).id }}{{ notEmpty $h2ID }} &lt;span style=&#34;color:#75715e&#34;&gt;# We assert that nodes[2].id is not empty and save it to variable `h2ID` for later use&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: localhost:-&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: H2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;calls&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty (index .calls &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;).id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: {{ $h2ID }} &lt;span style=&#34;color:#75715e&#34;&gt;# We use the previously assigned variable `h2Id` to asert that the `target` is equal to the `id` of the nodes[2]&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - CLIENT
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;-{{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;User&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: {{ b64enc &lt;span style=&#34;color:#e6db74&#34;&gt;&amp;#34;Your_ApplicationName&amp;#34;&lt;/span&gt; }}.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - SERVER
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;will validate this data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;nodes&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: User
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: USER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: Your_ApplicationName
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: Tomcat
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;true&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: localhost:-&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;type&lt;/span&gt;: H2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;isReal&lt;/span&gt;: &lt;span style=&#34;color:#66d9ef&#34;&gt;false&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;calls&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;-bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - CLIENT
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: bG9jYWxob3N0Oi0x&lt;span style=&#34;color:#ae81ff&#34;&gt;.0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;-WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;source&lt;/span&gt;: VXNlcg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;detectPoints&lt;/span&gt;:
+      - SERVER
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;target&lt;/span&gt;: WW91cl9BcHBsaWNhdGlvbk5hbWU=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+{{- contains .metrics }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: {{ notEmpty .name }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: {{ notEmpty .id }}
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt .value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+{{- end }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;will validate this data:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: business-zone::projectA
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer1
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMQ==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;and will report an error when validating this data, because there is no element with a value greater than 0:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# actual.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: business-zone::projectA
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: YnVzaW5lc3Mtem9uZTo6cHJvamVjdEE=.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer1
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMQ==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: system::load balancer2
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;id&lt;/span&gt;: c3lzdGVtOjpsb2FkIGJhbGFuY2VyMg==.&lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;The &lt;code&gt;contains&lt;/code&gt; does an unordered list verification, in order to do list verifications including orders, you can simply use the basic ruls like this:&lt;/p&gt;
+&lt;div class=&#34;highlight&#34;&gt;&lt;pre style=&#34;color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4&#34;&gt;&lt;code class=&#34;language-yaml&#34; data-lang=&#34;yaml&#34;&gt;&lt;span style=&#34;color:#75715e&#34;&gt;# expected.data.yaml&lt;/span&gt;
+&lt;span style=&#34;color:#66d9ef&#34;&gt;metrics&lt;/span&gt;:
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p99
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt (index .metrics &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt;).value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+  - &lt;span style=&#34;color:#66d9ef&#34;&gt;name&lt;/span&gt;: p95
+    &lt;span style=&#34;color:#66d9ef&#34;&gt;value&lt;/span&gt;: {{ gt (index .metrics &lt;span style=&#34;color:#ae81ff&#34;&gt;1&lt;/span&gt;).value &lt;span style=&#34;color:#ae81ff&#34;&gt;0&lt;/span&gt; }}
+&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;which expects the actual &lt;code&gt;metrics&lt;/code&gt; list to be exactly ordered, with first element named &lt;code&gt;p99&lt;/code&gt; and &lt;code&gt;value&lt;/code&gt; greater 0, second element named &lt;code&gt;p95&lt;/code&gt; and &lt;code&gt;value&lt;/code&gt; greater 0.&lt;/p&gt;
+
+      </description>
+    </item>
+    
+    <item>
       <title>Blog: [Design] NGE2E - Next Generation End-to-End Testing Framework</title>
       <link>/blog/e2e-design/</link>
       <pubDate>Mon, 14 Dec 2020 00:00:00 +0000</pubDate>
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+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
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index 8865951..2824070 100644
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+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
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+<meta property="article:modified_time" content="2021-02-05T13:53:01+08:00" />
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index 17ea5be..9c02884 100644
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diff --git a/zh_tags/user-manual/page/2/index.html b/zh_tags/user-manual/page/2/index.html
index cfc85f3..980fb55 100644
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diff --git a/zh_tags/video/index.html b/zh_tags/video/index.html
index 613b15f..30007c8 100644
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diff --git a/zh_tags/web-ui/index.html b/zh_tags/web-ui/index.html
index 9fcee1d..f288ebd 100644
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