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Posted to issues@activemq.apache.org by "Gary Tully (JIRA)" <ji...@apache.org> on 2018/07/25 15:41:00 UTC

[jira] [Created] (AMQ-7021) DestinationMap access inside Abstract Region readwrite lock does not need sync

Gary Tully created AMQ-7021:
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             Summary: DestinationMap access inside Abstract Region readwrite lock does not need sync
                 Key: AMQ-7021
                 URL: https://issues.apache.org/jira/browse/AMQ-7021
             Project: ActiveMQ
          Issue Type: Improvement
          Components: Broker
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.16.0


Using multiple virtual topic publishers, there is unnecessary serialisation via the destination map.

the read write lock introduced in AMQ-3454 is sufficient to guard access in this case and reads should operate in parallel.

with many thousand destinations lookup can be expensive and the serialisation becomes apparent.



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