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From "Lorenz Quack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-7958) [Java Broker] [AMQP0-10] References to messages sent by $virtualhostProperties node retained by store
Date Mon, 09 Oct 2017 13:28:00 GMT

    [ https://issues.apache.org/jira/browse/QPID-7958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16196945#comment-16196945

Lorenz Quack commented on QPID-7958:

Keith and I paired on this task.

> [Java Broker] [AMQP0-10] References to messages sent by $virtualhostProperties node retained
by store
> -----------------------------------------------------------------------------------------------------
>                 Key: QPID-7958
>                 URL: https://issues.apache.org/jira/browse/QPID-7958
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>    Affects Versions: qpid-java-broker-7.0.0
>            Reporter: Keith Wall
>            Priority: Critical
>             Fix For: qpid-java-broker-7.0.0
> On  the 0-10 path, I notice that references to messages created by the {{${virtualhostProperties\}}}
node are being retained internally within the store.  This is leaking approximately ~1024
bytes per connection.  Restarting the Broker or recycling the virtualhost frees the memory.
> The reference are being retained by the {{AbstractXXXMessageStore#_messages}} set.
> QPID-7783 added the _messages data structure.  -It was back ported to 6.0 and 6.1, so
the leak might be present there too.  I have not verified this-. (updated 2017/10/06 does
not affect 6.1 or 6.0.  The MessageInstanceConsumerPair, which is no longer on master, unconditionally
took a reference, so a reference was already taken).

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