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https://issues.apache.org/jira/browse/QPID-8385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16984597#comment-16984597
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Alex Rudyy commented on QPID-8385:
----------------------------------
Attached patch
[^0001-QPID-8385-Broker-J-Delete-queue-entry-asynchronously.patch] with
implementation of a second approach described above
> [Broker-J] Improve performance of operation to dequeue queue entries on
> message expiration or triggering ring policy
> --------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-8385
> URL: https://issues.apache.org/jira/browse/QPID-8385
> Project: Qpid
> Issue Type: Improvement
> Components: Broker-J
> Reporter: Alex Rudyy
> Priority: Major
> Fix For: qpid-java-broker-8.0.0, qpid-java-broker-7.1.6
>
> Attachments:
> 0001-QPID-8385-Broker-J-Delete-queue-entry-asynchronously.patch,
> 0001-QPID-8385-Broker-J-Utilize-AsyncAutoCommitTransactio.patch
>
>
> AutoCommitTransaction is used to dequeue entries on message expiration or
> breaching ring policy threshold. As result, the dequeueing operation for
> persistent queue entry blocks until queue entry record is removed from the
> store and the underlying store transaction is synced to disk. The sequential
> removal of multiple entries can results in unnecessary delays due to syncing
> disk on every dequeue.
> The broker performance for the corner cases described above can be
> significantly improved by using asynchronous transactions in dequeue
> operations.
> Asynchronous transaction does not wait for the store dequeue transaction to
> sync to disk. As result, the performance of removal unneeded queue entries
> can increase.
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