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Posted to commits@activemq.apache.org by bu...@apache.org on 2013/05/02 10:21:46 UTC
svn commit: r860565 - in /websites/production/activemq/content:
cache/main.pageCache replicated-leveldb-store.html
Author: buildbot
Date: Thu May 2 08:21:44 2013
New Revision: 860565
Log:
Production update by buildbot for activemq
Modified:
websites/production/activemq/content/cache/main.pageCache
websites/production/activemq/content/replicated-leveldb-store.html
Modified: websites/production/activemq/content/cache/main.pageCache
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Binary files - no diff available.
Modified: websites/production/activemq/content/replicated-leveldb-store.html
==============================================================================
--- websites/production/activemq/content/replicated-leveldb-store.html (original)
+++ websites/production/activemq/content/replicated-leveldb-store.html Thu May 2 08:21:44 2013
@@ -84,18 +84,18 @@ to other ActiveMQ nodes so that you don'
<p>It uses <a shape="rect" class="external-link" href="http://zookeeper.apache.org/">Apache ZooKeeper</a> to coordinate which node in the cluster becomes<br clear="none">
the master. The elected master broker node starts and accepts client connections.<br clear="none">
The other nodes go into slave mode and connect the the master and synchronize their persistent<br clear="none">
-state /w it. The salve nodes do not accept client connections. All persistent operations are <br clear="none">
+state /w it. The slave nodes do not accept client connections. All persistent operations are <br clear="none">
replicated to the connected slaves. If the master dies,<br clear="none">
the slaves with the latest update gets promoted to become the master. The failed node can then <br clear="none">
be brought back online and it will go into slave mode.</p>
-<p>All messaging operations which require a sync to disk will wait the update to be replicated to a quorum<br clear="none">
+<p>All messaging operations which require a sync to disk will wait for the update to be replicated to a quorum<br clear="none">
of the nodes before completing. So if you configure the store with <tt>replicas="3"</tt> then the quorum<br clear="none">
size is <tt>(3/2+1)=2</tt>. The master will store the update locally and wait for 1 other slave to store <br clear="none">
the update before reporting success.</p>
<p>When a new master is elected, you also need at least a quorum of nodes online to be able to find a <br clear="none">
-node with the lastest updates. The node with the laste updates will become the new master. Therefore,<br clear="none">
+node with the lastest updates. The node with the lastest updates will become the new master. Therefore,<br clear="none">
it's recommend that you run with at least 3 replica nodes so that you can take one down without suffering<br clear="none">
a service outage.</p>