Sorry should have included this before:
JVM original options:
· -Xmx1024M
· -Xms48
· -XX:SoftRefLRUPolicyMSPerMB=36000
· -XX:MaxPermSize=128m
· -XX:+UseParallelGC
JVM new options:
· -Xmx2048M
· -Xms48
· -XX:SoftRefLRUPolicyMSPerMB=36000
· -XX:MaxPermSize=256m
· -XX:+UseParallelGC
Jonathan – not sure on the logs, always struggle to get to grips with them. The tomcat7-stderr.2014-05-16.log contains a few “[…]This is very likely to create a memory leak.” entries even after the memory bump.
Rob
From: Jonathan Moules [mailto:jonathanmoules@anonymised.com]
Sent: 16 May 2014 09:40
To: Langford, Robert
Cc: geoserver-users@lists.sourceforge.net
Subject: Re: [Geoserver-users] Out Of Memory Error / Memory Leak
Hi Rob,
How much memory are you giving to your instance and what was it before?
My own 2.5-snapshot and 2.4.3 instances both show this line in a few places (and it’s in my 2.3.2 logs too):
2014-05-12 14:26:05,020 ERROR [geotools.map] - Call MapContent dispose() to prevent memory leaks
Any indications as to anything else with the word “memory” in the logs anywhere? (just guessing as to it being possibly culpable; I’m not a dev so don’t know).
Cheers,
Jonathan
On 16 May 2014 09:19, Langford, Robert <Robert.Langford@anonymised.com90…> wrote:
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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