Justin,
Andrea told me that most of the memory problems depend on dashed lines; since I
now took all these out, everything is running fine; only the graphic could be a
little bit more advanced, so I’m waiting for the next stable version, which
removes that problem.
Greetings from Vienna
Wolfgang
From: Justin Deoliveira [mailto:jdeol...@opengeo.org]
Sent: Friday, November 12, 2010 5:03 PM
To: Wolfgang W. Wasserburger
Cc: geoserver-users@lists.sourceforge.net
Subject: Re: [Geoserver-users] tomcat crashing on high load
Hi Wolfgang,
What version of geoserver are you using? There are known memory leaks with the
WFS subsystem in released versions, but if you grab a recent nightly they
should be no longer.
Are you using WFS at all? Or just WFS?
What are your current memory settings? If you want to do some debugging what
you can do is limit the heap size to something like 1G and then add the
-XX:-HeapDumpOnOutOfMemoryError which will dump the contents of the heap when
the server runs out of memory.
Then you can try to use a profiling tool to analyze the dump to figure out
where the memory leak lies. Or if you can make the dump available another dev
might be able to download and analyze it.
-Justin
On Tue, Nov 2, 2010 at 8:21 AM, Wolfgang W. Wasserburger
<wolfg...@wasserburger.at> wrote:
Sorry, for resending this post, but it looks to me as it was not delivered from
the list:
----
Dear all,
I am using geoserver for development since half a year and it worked quite OK,
the graphical result was really nice.
As we now liked to change to a production environment, geoserver uses more and
more memory and when all memory is used it crashes and tomcat crashes with
itself.
I now use a cron job to automatically restart tomcat, but this is only a
cosmetical correcture. It won’t work in real production circumstances.
I tried several variations in the configuration within the last three days (and
nights). Nothing did its job.
Only the change from the SUN JVM to OpenJVM is worth to mention since this
ruined the background color to the last color in the SLD.
But now, please, I need the help of the community:
My system is running on a virtual host with 12GB RAM under Ubuntu; we are
running SUN Java 6 and Tomcat 6 with the Geoserver 2.0.2 war-File. The tiles
are requested with GWC by the OpenLayers Library. But it crashes also without
using GWC.
On the same system I’m also running Postgres/PostGIS as a datasource.
The tiles consist of a layerGroup with several Layers with several
FeatureTypeStyles with several Rules. The Request Time ist not the problem, but
the unstability.
I changed the following parameters in various combinations:
-Xmx
-Xms
-XX:PermSize
-XX:PermSizeMax
Compression Level (BTW: in the Doku I could not find, if Level 0 [or 100] is
lowest or highest)
Threads
JAI-Settings
… some more
Does anyone has suggestions how to get it running or am I running into a severe
bug?
Greetings from nightly Vienna
Wolfgang
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--
Justin Deoliveira
OpenGeo - http://opengeo.org
Enterprise support for open source geospatial.
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Simplifying enterprise desktop deployment and management using
Dell EqualLogic storage and VMware View: A highly scalable, end-to-end
client virtualization framework. Read more!
http://p.sf.net/sfu/dell-eql-dev2dev
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