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Posted to issues@activemq.apache.org by "Christopher L. Shannon (JIRA)" <ji...@apache.org> on 2018/07/30 10:59:00 UTC

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

     [ https://issues.apache.org/jira/browse/AMQ-7021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christopher L. Shannon updated AMQ-7021:
----------------------------------------
    Fix Version/s: 5.15.5

> 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
>            Priority: Major
>             Fix For: 5.16.0, 5.15.5
>
>
> 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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