Eric / Andrea / Jonathan - Thanks for your inputs and apologies for the delay
in coming back to you all.
Everything now seems to be running ok, guess we'll just keep an eye on it.
Next probable action will be to upgrade Geoserver to at least the 2.4.x version
as mentioned by Eric.
In the mean time could anyone comment if our new JVM options look reasonable
(I'm aware they're really dependant on our data and demand, but anything we've
overlooked or that doesn't add up)?:
* -Xmx2048M
* -Xms48
* -XX:SoftRefLRUPolicyMSPerMB=36000
* -XX:MaxPermSize=256m
* -XX:+UseParallelGC
Thanks all,
Rob
From: Eric Smets [mailto:[email protected]]
Sent: 16 May 2014 10:44
To: Langford, Robert
Subject: Re: [Geoserver-users] Out Of Memory Error / Memory Leak
Hi,
A major memory leak has been solved in the geoserver 2.4 version.
Since we installed this version no issues have been seen.
Regards,
Eric Smets
Op 16/05/2014 10:19, Langford, Robert schreef:
All,
Wondering if anyone can point us in the right direction to solve this
java/memory issue. Yesterday afternoon our Tomcat went down, wasn't picked up
until this morning. Stop/started Tomcat and appeared to work again. Looking
at the logs appeared to be a "java.lang.OutOfMemoryError: PermGen space"
problem. We have spare memory on the server so we upped the JVM container
settings (-Xmx & -XX:MaxPermSize), we then restarted Tomcat again.
Looking at the logs in more detail we found a few things that seemed worrying
such as:
* IOException while loading persisted sessions: java.io.EOFException
* The web application [/geoserver] appears to have started a thread
named [pool-2-thread-1] but has failed to stop it. This is very likely to
create a memory leak.
* CSSEngine: exception
property.syntax.error:org.w3c.css.sac.CSSParseException: Unexpected token: 0
(see LexicalUnits)
System details
* GeoServer: 2.3.3
* Apache Tomcat: 7.0.41
* JVM Version: 1.6.0_45-b06
* Windows Server 2008 R2; 64-bit; 4GB RAM; virtual
I've attached some logs (I've edited some for brevity); the 2014-05-15 logs
relate to the initial OutOfMemoryError and the 2014-05-16 one includes info on
other errors listed above on restarts. Brief timeline to help navigate the logs:
* Initial problems: 2014-05-15 15:45
* Stopped Tomcat: 2014-05-16 07:44
* Started Tomcat: 2014-05-16 07:50
* Stopped Tomcat: 2014-05-16 08:07
* Increase JVM memory options
* Started Tomcat: 2014-05-16 08:08
System has been working great for some time, recently has started to be
accessed more, but no major changes that we're aware of. Any pointers greatly
appreciated.
Many thanks,
Rob
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