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https://issues.apache.org/jira/browse/QPID-4046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ken Giusti resolved QPID-4046.
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Resolution: Fixed
> Improve broker's performance by rate limiting queue cleanup.
> ------------------------------------------------------------
>
> Key: QPID-4046
> URL: https://issues.apache.org/jira/browse/QPID-4046
> Project: Qpid
> Issue Type: Improvement
> Components: C++ Broker
> Affects Versions: 0.16
> Reporter: Ken Giusti
> Assignee: Ken Giusti
> Priority: Trivial
> Fix For: 0.17
>
> Attachments: patch.txt
>
>
> The cleanup of dequeued messages is done on the receive path with the Queue's
> messageLock held (has to be held). When multiple consumers with large ack
> windows are sharing the queue, a large backlog of messages can build up.
> Performance of the consumer can be improved by rate limiting this queue
> cleanup.
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