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List:       activemq-dev
Subject:    [jira] Commented: (AMQ-662) Infinite Loop after message resend
From:       "John Pederzolli (JIRA)" <jira () apache ! org>
Date:       2006-03-30 2:46:08
Message-ID: 1272155315.1143686768498.JavaMail.jira () ajax
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    [ https://issues.apache.org/activemq/browse/AMQ-662?page=comments#action_35941 ] 

John Pederzolli commented on AMQ-662:
-------------------------------------

I've been looking into this further and it appears to be a synchronization issue in \
or related to ServerSessionImpl.java. If I individually send messages which are then \
forced to resend, everything works fine. This infinite loop only occurs when I send \
several messages in a row. 

> Infinite Loop after message resend
> ----------------------------------
> 
> Key: AMQ-662
> URL: https://issues.apache.org/activemq/browse/AMQ-662
> Project: ActiveMQ
> Type: Bug

> Components: Broker
> Versions: 4.0 RC1
> Environment: JDK 1.5
> Reporter: John Pederzolli
> Priority: Critical
> Attachments: activemq.xml, applicationContext.xml
> 
> 
> when a runtime exception in onMessage the messages are getting rolledback/resent as \
> expected, however AMQ appears to go into an infinite loop at this point taking up \
>                 100% of the CPU. Turning debug on shows the following repeated:
> ...
> [DEBUG] 2006-03-21 16:55:37,586 - org.apache.activemq.ra.ServerSessionImpl:1 \
> (ServerSessionImpl.java:159)- run loop start [DEBUG] 2006-03-21 16:55:37,586 - \
> org.apache.activemq.ra.ServerSessionImpl:3 (ServerSessionImpl.java:172)- run loop \
> end [DEBUG] 2006-03-21 16:55:37,586 - org.apache.activemq.ra.ServerSessionImpl:22 \
> (ServerSessionImpl.java:172)- run loop end [DEBUG] 2006-03-21 16:55:37,586 - \
> org.apache.activemq.ra.ServerSessionImpl:11 (ServerSessionImpl.java:159)- run loop \
> start [DEBUG] 2006-03-21 16:55:37,586 - org.apache.activemq.ra.ServerSessionImpl:0 \
> (ServerSessionImpl.java:172)- run loop end [DEBUG] 2006-03-21 16:55:37,586 - \
> org.apache.activemq.ra.ServerSessionImpl:17 (ServerSessionImpl.java:172)- run loop \
> end [DEBUG] 2006-03-21 16:55:37,586 - org.apache.activemq.ra.ServerSessionImpl:1 \
> (ServerSessionImpl.java:172)- run loop end  The resend (and resulting infinte loop) \
> was triggered by throwing a RuntimeException in the onMessage method of the POJO \
> MDB. This is being used alongside Spring 1.2.7, Jencks 1.1.1 in a POJO message \
> driven bean setup. Attached are the configurations producing the error. 

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