[richfaces-issues] [JBoss JIRA] (RF-13250) Extreme memory usage in RF4.3.4.Final and not in RF4.3.3.Final

[Tobias Seppenhauser (JIRA)]

    [ https://issues.jboss.org/browse/RF-13250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12945409#comment-12945409 ] 

Tobias Seppenhauser commented on RF-13250:
------------------------------------------

This bug has also been seen on our customer systems (using RF 4.3.5 and JBoss 7.1). Thanks to Marcel I was able to reproduce this issue with a small bash script

{code}
#!/bin/bash
echo "Starting the 'long poll of death'! - $(date)"
while true
do
	curl http://localhost/ws/__richfaces_push?X-Atmosphere-Transport=long-polling &> /dev/null
	sleep 0.1
done
{code}

The used JBoss instance had a max heap size of 2GB. After running the script round about 12hours the server crashed with {{java.lang.OutOfMemoryError: Java heap space}}
                
> Extreme memory usage in RF4.3.4.Final and not in RF4.3.3.Final
> --------------------------------------------------------------
>
>                 Key: RF-13250
>                 URL: https://issues.jboss.org/browse/RF-13250
>             Project: RichFaces
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 4.3.4, 4.3.5
>         Environment: Gentoo Linux, Tomcat 7.0.39, MyFaces 2.1.12, Tomahawk 1.1.14, RichFaces 4.3.4, APR 1.4.5
>            Reporter: Milo van der Zee
>            Assignee: Juraj Húska
>              Labels: memoryleak
>
> Hello,
> I did an upgrade from RF 4.3.3.Final to 4.3.4.Final and the application started to crash with 'Out Off Memory' errors. I changed the POM back to 4.3.3.Final and the problem is gone.
> I also started seeing this message lot's of times:
> {{WARN  org.atmosphere.cpr.AtmosphereResponse - Committed error code 400}}
> I don't know if that has anything to do with the error. I set {{org.atmosphere.cpr.sessionSupport}} to {{true}} and I did not see the message again. But still the application went out-of-memory.
> In the crashed system heap dump I see a lot of:
> - AtomicBoolean (751.000, 15.0MB)
> - ConcurrentLinkedQueue
> - AtmospereRequest$Builder (60.042, 13.8MB)
> To me it looks like it has something to do with Atmosphere. Any ideas?
> Thanks,
> Milo van der Zee

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