[
https://issues.apache.org/activemq/browse/AMQ-2487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Colin MacNaughton updated AMQ-2487:
-----------------------------------
Attachment: AMQ-2487patch.txt
Patch file attached. It is worth investigating if there are other problematic
scenarios where BrokerRegion.doResend might be using the wrong MemoryUsage
> MemoryUsage not properly accounted for when expiring messages to DLQ: can
> lead to hang.
> ---------------------------------------------------------------------------------------
>
> Key: AMQ-2487
> URL: https://issues.apache.org/activemq/browse/AMQ-2487
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.4.0
> Environment: N/A
> Reporter: Colin MacNaughton
> Fix For: 5.4.0
>
> Attachments: AMQ-2487patch.txt
>
>
> Given the following broker destination policy
> {code:xml}
> <destinationPolicy>
> <policyMap>
> <policyEntries>
> <policyEntry topic=">" producerFlowControl="true"
> memoryLimit="1mb">
> <pendingSubscriberPolicy>
> <vmCursor />
> </pendingSubscriberPolicy>
> </policyEntry>
> <policyEntry queue=">" producerFlowControl="true"
> memoryLimit="1mb">
> <!--
> Use VM cursor for better latency For more information,
> see: http://activemq.apache.org/message-cursors.html
> -->
> <pendingQueuePolicy>
> <vmQueueCursor />
> </pendingQueuePolicy>
> </policyEntry>
> </policyEntries>
> </policyMap>
> </destinationPolicy>
> {code}
> If I send message to queue://TESTQ1 with an expiration of 1second, with an
> unreliable/slow receiver, the publisher eventually hangs sending to the
> queue. The underlying problem is that when the message is expired to the DLQ
> the MemoryUsage reference is left pointing the TESTQ1's memory limiter,
> instead of being reset to the DLQ limiter, and when it is added to the DLQ,
> TESTQ1's memory limiter is updated counteracting the decrement that is done
> by the TESTQ1 when the message is expired.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
