[jboss-jira] [JBoss JIRA] Commented: (JGRP-33) JGroups throws OutOfMemoryError after running for a few hours

[Bela Ban (JIRA)]

    [ http://jira.jboss.com/jira/browse/JGRP-33?page=comments#action_12348148 ] 
            
Bela Ban commented on JGRP-33:
------------------------------

Tony: please use the mailing lists to discuss issue such as these. JIRA should just be used to create issues. If you have a use case (with code) that describes how to get an OOM, that would help. You can turn local messages off through Channel.setOpt(Channel.LOCAL, Boolean.FALSE);

> JGroups throws OutOfMemoryError after running for a few hours
> -------------------------------------------------------------
>
>                 Key: JGRP-33
>                 URL: http://jira.jboss.com/jira/browse/JGRP-33
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.2.8
>         Environment: SUN JDK 1.4.2_05 & SUN JDK 1.5.0 on Windows & Unix platforms
>            Reporter: B.S.Navin
>         Assigned To: Bela Ban
>             Fix For: 2.2.8
>
>         Attachments: fc-fast-udp-tcpping.xml, fc-fast-udp.xml, JGroupsMemTest.java, PublishThread2.java, runj10.sh
>
>
> I ran 10 instances of a simple program with 3 threads. The max memory is kept as the JVM default (64M). The 10 programs join the same JGroup and the threads in the programs keep publishing a small hashmap at 5 second intervals.
> The heap memory consumed (Runtime.totalMemory() - Runtime.freeMemory()) slowly increases over a period of 4-5 hours and reaches the default max limit (64M) when it starts throwing OutOfMemory errors on all instances.
> I have run the program on unix and windows machines with 1G RAM.
> Not able to make much from an HProf output of one of the instances.
> This seems to be the cause for the JBossCache bug "http://jira.jboss.com/jira/browse/JBCACHE-31" too.
> I have tried out a UDP/PING and a UDP/TCPPING combination and this problem occurs in both cases.

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