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From "Marnie McCormack (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Resolved: (QPID-2749) [Java Broker] Add -XX:+ExplicitGCInvokesConcurrent to qpid-server[.bat]
Date Wed, 29 Sep 2010 16:55:33 GMT

     [ https://issues.apache.org/jira/browse/QPID-2749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marnie McCormack resolved QPID-2749.
------------------------------------

    Resolution: Fixed

Correctly set for bat/bash script

> [Java Broker] Add -XX:+ExplicitGCInvokesConcurrent to qpid-server[.bat]
> -----------------------------------------------------------------------
>
>                 Key: QPID-2749
>                 URL: https://issues.apache.org/jira/browse/QPID-2749
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>    Affects Versions: M2.1, M3, M4, 0.5, 0.6
>            Reporter: Rob Godfrey
>            Assignee: Andrew Kennedy
>             Fix For: 0.7
>
>
> Currently JAVA_GC is set as following in qpid-server
> JAVA_GC="-XX:+UseConcMarkSweepGC -XX:+HeapDumpOnOutOfMemoryError"
> In the case where an explicit GC is called this can cause significant delay.  In order
to avoid this the following option should also be supplied
>  -XX:+ExplicitGCInvokesConcurrent 
> In the case where RMI connections are being made to the JVM, Explicit GCs may be being
called periodically (by default every hour) causing significant pauses in processing without
this setting.

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