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Posted to dev@activemq.apache.org by "Timothy Bish (JIRA)" <ji...@apache.org> on 2012/10/29 21:10:12 UTC
[jira] [Closed] (AMQ-2056) Jencks container sometimes hangs when
maxMessagesPerSessions is < maxSessions
[ https://issues.apache.org/jira/browse/AMQ-2056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Timothy Bish closed AMQ-2056.
-----------------------------
Resolution: Won't Fix
Jencks is EOL at this point.
> Jencks container sometimes hangs when maxMessagesPerSessions is < maxSessions
> -----------------------------------------------------------------------------
>
> Key: AMQ-2056
> URL: https://issues.apache.org/jira/browse/AMQ-2056
> Project: ActiveMQ
> Issue Type: Bug
> Components: JCA Container
> Environment: Mac OX/X
> Reporter: Adrian Trenaman
> Fix For: 5.x
>
> Attachments: jencks-blocking-consumers.tar
>
>
> I've found that if I configure Jencks with a low maxMessagesPerSessions (e.g. 3) and a higher maxSessions (e.g. 8) then my consumers hang after about 30 messages and no more messages get consumed.
> Any idea why this might be? I find that if I make the maxMessagesPerSessions (which AFAIK matches the queue prefetch value) higher then it seems to work. I'm happy to do this, but I'm puzzled as to why this occurs.
> Any help gratefully accepted - sample Spring config below. Also, I've attached sample code to this issue. Run the RequestHandler server from within Eclipse against a standalone broker, and then just use the ActiveMQ Web Console to sent 1000 messages to the queue RA.request
> /Ade
> <bean id="listenerJcaConnector" class="org.jencks.JCAConnector">
> <property name="jcaContainer" ref="jencksContainer"/>
> <property name="transactionManager" ref="transactionManager"/>
> <property name="activationSpec">
> <bean class="org.apache.activemq.ra.ActiveMQActivationSpec">
> <property name="destination" value="RA.REQUEST"/>
> <property name="destinationType" value="javax.jms.Queue"/>
> <property name="maxSessions" value="8"/>
> <property name="maxMessagesPerSessions" value="3"/> <!-- effectively, this just matches the prefetch size -->
> </bean>
> </property>
> <property name="ref" value="messageListener"/>
> </bean>
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