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From build...@apache.org
Subject svn commit: r1016341 - in /websites/production/activemq/content: cache/main.pageCache timestampplugin.html
Date Thu, 03 Aug 2017 15:23:46 GMT
Author: buildbot
Date: Thu Aug  3 15:23:46 2017
New Revision: 1016341

Log:
Production update by buildbot for activemq

Modified:
    websites/production/activemq/content/cache/main.pageCache
    websites/production/activemq/content/timestampplugin.html

Modified: websites/production/activemq/content/cache/main.pageCache
==============================================================================
Binary files - no diff available.

Modified: websites/production/activemq/content/timestampplugin.html
==============================================================================
--- websites/production/activemq/content/timestampplugin.html (original)
+++ websites/production/activemq/content/timestampplugin.html Thu Aug  3 15:23:46 2017
@@ -83,8 +83,8 @@
         <td valign="top" width="100%">
 <div class="wiki-content maincontent"><p>The TimeStampPlugin is a Broker interceptor
which updates a JMS Client's time stamp on the message with a broker time stamp. This can
be useful when the clocks on client machines are known to not be correct and you can only
trust the time set on the broker machines.</p><p>Enabling this plugin will break
JMS compliance since the time stamp that the producer sees on the messages after as&#160;<strong><code>send()</code></strong>
will be different from the time stamp the consumer will observe when he receives the message.</p><div
class="confluence-information-macro confluence-information-macro-information"><span
class="aui-icon aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body">By default this plugin is <em>not</em>
enabled in ActiveMQ.</div></div><h4 id="TimeStampPlugin-Options">Options</h4><div
class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1"
row
 span="1" class="confluenceTh"><p><strong>Attribute</strong></p></th><th
colspan="1" rowspan="1" class="confluenceTh"><p><strong>Default Value</strong></p></th><th
colspan="1" rowspan="1" class="confluenceTh"><p><strong>Description</strong></p></th></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>futureOnly</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>When <strong><code>true</code></strong>
the plugin will <em>never</em> set a message's time stamp and expiration time
to a value lower than the original values.</p><p>When <strong><code>false</code></strong>
the plugin&#160;<em>always</em> update a message's time stamp and expiration
time.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>ttlCeiling</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>0</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>When n
 ot zero, this value (in ms) limit the expiration time.</p></td></tr><tr><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>zeroExpirationOverride</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p><code>0</code></p></td><td
colspan="1" rowspan="1" class="confluenceTd"><p>When not zero this value (in ms)
will override the expiration time for messages that do not have an expiration already set.</p></td></tr></tbody></table></div><p>To
enable the TimeStampPlugin add the following to your ActiveMQ Broker configuration.</p><p>Example:</p><div
class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent
pdl">
 <pre class="brush: xml; gutter: false; theme: Default" style="font-size:12px;">&lt;plugins&gt;
-  &lt;!-- 86,400ms = 1 day --&gt;
-  &lt;timeStampingBrokerPlugin ttlCeiling="86400" zeroExpirationOverride="86400"/&gt;
+  &lt;!-- 86,400,000 ms = 1 day --&gt;
+  &lt;timeStampingBrokerPlugin ttlCeiling="86400000" zeroExpirationOverride="86400000"/&gt;
 &lt;/plugins&gt;
 </pre>
 </div></div><div class="confluence-information-macro confluence-information-macro-information"><p
class="title"> Broker/Consumer Clock Synchronization</p><span class="aui-icon
aui-icon-small aui-iconfont-info confluence-information-macro-icon"></span><div
class="confluence-information-macro-body"><p>When the consumer&#8217;s local
clock is running ahead of the broker&#8217;s local clock then messages might not be consumed
by your consumer when this plug-in is loaded with default configuration as the consumer could
perceive the messages as already expired.</p><p>If the clock difference between
broker and consumer is <em>greater than</em> the message expiration time <em>and</em>
if the consumer&#8217;s clock is running ahead, then set <strong><code>futureOnly="true"</code></strong>.</p><p>See
the following <a shape="rect" class="external-link" href="http://tmielke.blogspot.com/2011/01/sync-your-machine-clocks.html"
rel="nofollow">blog post</a> for more details.</p></div></div></div>



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