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From "Pavel Moravec (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-7150) HA memory leak in primary broker when overwriting messages in a ring queue
Date Fri, 18 Mar 2016 08:10:33 GMT

    [ https://issues.apache.org/jira/browse/QPID-7150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15201143#comment-15201143
] 

Pavel Moravec commented on QPID-7150:
-------------------------------------

This does not fix https://bugzilla.redhat.com/show_bug.cgi?id=1318180 fully. See https://issues.apache.org/jira/browse/QPID-7149
where:

- the leak is present with --ha-replicate=none also where the modified code isn't executed
- testing upstream qpid with this fix, the leak is still present (I will compare if it is
smaller, so if the code change fixes something (I expect so))

> HA memory leak in primary broker when overwriting messages in a ring queue
> --------------------------------------------------------------------------
>
>                 Key: QPID-7150
>                 URL: https://issues.apache.org/jira/browse/QPID-7150
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Clustering
>    Affects Versions: 0.32
>            Reporter: Alan Conway
>            Assignee: Alan Conway
>             Fix For: qpid-cpp-next
>
>
> From https://bugzilla.redhat.com/show_bug.cgi?id=1318180
> HA memory leak in primary broker when overwriting messages in a ring queue
> ReplicatingSubscription accumulates IDs of dequeued messages to send on
> dispatch. It should clear the accumulated IDs once sent. Due to a merge error,
> since:
>     014f0f3 QPID-4327: HA TX transactions: basic replication.
> The ID set is not cleared, causing it to accumulate memory slowly.
> This leak would be particularly noticeable on a busy ring-queue since a
> ring-queue generates a dequeue event for every enqueue once it reaches its max
> size.



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