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Posted to dev@activemq.apache.org by "Dong Pak (JIRA)" <ji...@apache.org> on 2010/04/15 00:27:44 UTC
[jira] Reopened: (AMQ-1787) Too many expired queue messages on
intermittent consumer causes ActiveMQ to hang
[ https://issues.apache.org/activemq/browse/AMQ-1787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dong Pak reopened AMQ-1787:
---------------------------
Regression: [Regression]
With a producer producing object messages with message expiration set to 5 seconds, we are seeing no messages sent to consumer when messages start to expire and put into DLQ. Due to some issue between the ActiveMQ RA and SJSAS 9.1, our consumer's prefetch is set to 100. We are using a queue, which the prefetch should be defaulted to 1000. We are seeing this "hanging" appearance in 5.3.1.
> Too many expired queue messages on intermittent consumer causes ActiveMQ to hang
> --------------------------------------------------------------------------------
>
> Key: AMQ-1787
> URL: https://issues.apache.org/activemq/browse/AMQ-1787
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.1.0
> Environment: Linux
> Sun JDK 1.6.0
> Reporter: Brian Desai
> Assignee: Rob Davies
> Fix For: 5.2.0
>
>
> I have a case where a queue consumer may become inactive for periods of time. If too may messages are sent to this queue, and they eventually expire (setting the TTL) before the consumer comes back online, then once the consumer does come online, I see many of the following messages printed to the broker console.
> {quote}Failed to fire message expired advisory{quote}
> Once this happens, it seems that no more messages go to any queues, not just the queue whose consumer was down for a while. I've looked at the web console, both before and after this occurs, and the message counts for all queues stop. It appears that the broker just gets hung. I have to kill the broker, and wipe out the data storage in order to get back to a working state.
> I've tried various memory settings, with the same result. My TTL was fairly low (60 seconds), as I was testing out the ability to expire messages. The number of messages in the queue that were expired were in the 1000+ range. With a low number of expired messages (< 100), there was no problem.
> As a work around, I can disable sending of the advisory messages, and turn off processing of expired messages, but this is not ideal.
> {code:xml}
> <beans>
> ....
> <broker ... advisorySupport="false">
> <destinationPolicy>
> <policyMap>
> <policyEntries>
> <policyEntry queue=">">
> <deadLetterStrategy>
> <sharedDeadLetterStrategy processExpired="false"/>
> </deadLetterStrategy>
> </policyEntry>
> ...
> </policyEntries>
> </policyMap>
> </destinationPolicy>
> ...
> </broker>
> </beans>
> {code}
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