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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-5965) [Java Broker] Store transient messages to disk (and remove from memory) when in low memory conditions
Date Wed, 06 Aug 2014 11:07:12 GMT

    [ https://issues.apache.org/jira/browse/QPID-5965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14087546#comment-14087546
] 

ASF subversion and git services commented on QPID-5965:
-------------------------------------------------------

Commit 1616155 from [~godfrer] in branch 'qpid/trunk'
[ https://svn.apache.org/r1616155 ]

QPID-5965 : [Java Broker] flow transient messages to disk in low memory situations

> [Java Broker] Store transient messages to disk (and remove from memory) when in low memory
conditions
> -----------------------------------------------------------------------------------------------------
>
>                 Key: QPID-5965
>                 URL: https://issues.apache.org/jira/browse/QPID-5965
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Java Broker
>            Reporter: Rob Godfrey
>            Assignee: Rob Godfrey
>             Fix For: 0.29
>
>
> Currently the Java Broker will evacuate persistent messages from memory in low memory
situations, but does not do the same with transient messages.  By monitoring total queue size,
we can determine when it may be appropriate to force transient messages to disk (and thus
make them eligible for evacuation from memory) and in this way make the broker capable of
withstanding periods of increased retention of transient messages.



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