[jira] [Created] (QPID-8385) [Broker-J] Improve performance of operation to dequeue queue entries on message expiration or triggering ring policy

["Alex Rudyy (Jira)" <ji...@apache.org>]

Alex Rudyy created QPID-8385:
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             Summary: [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
             Fix For: qpid-java-broker-8.0.0, qpid-java-broker-7.1.6


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  AsyncAutoCommitTransaction 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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