svn commit: r856668 - in /websites/production/activemq/content: cache/main.pageCache how-can-i-support-priority-queues.html

[bu...@apache.org]

Author: buildbot
Date: Sun Mar 31 03:29:06 2013
New Revision: 856668

Log:
Production update by buildbot for activemq

Modified:
    websites/production/activemq/content/cache/main.pageCache
    websites/production/activemq/content/how-can-i-support-priority-queues.html

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

Modified: websites/production/activemq/content/how-can-i-support-priority-queues.html
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--- websites/production/activemq/content/how-can-i-support-priority-queues.html (original)
+++ websites/production/activemq/content/how-can-i-support-priority-queues.html Sun Mar 31 03:29:06 2013
@@ -93,6 +93,7 @@
 
 <p>Since the message cursors (and client side) implement strict ordering of priorities, it's possible to observe strict priority ordering if message dispatching can happen from the cache and not have to hit the disk (i.e., your consumers are fast enough to keep up with producers), or if you're using non-persistent messages that never have to flush to disk (which happens by default using the FilePendingMessageCursor). However, once you hit a situation where consumers are slow, or producers are just significantly faster, you'll observe that the cache will fill up (possibly with lower priority messages) while higher priority messages get stuck on disk and not available until they're paged in. In this case, you can make a decision to tradeoff optimized message dispatching for priority enforcement. You can disable the cache, message expiration check, and lower you consumer prefetch to 1 to ensure getting the high priority messages from the store ahead of lower priority messages:<
 /p>
 
+
 <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
 <pre class="code-java">
  &lt;destinationPolicy&gt;