On Mon, Sep 24, 2012 at 11:12 PM, Gundel, Aaron <[email protected]>wrote:
> Hello all,****
>
> ** **
>
> Here’s the stack trace. Looks like there’s some connection not being
> closed; here’s a stack trace with the approximate location and such… Any
> way I can work around this? Thanks!****
>
> **
>
Two of the errors might be related with each other (the connection and
timeout ones), but might be
unrelated to the OOM one (or else, the OOM one might be causing the slow
drawing which in turn
causes the timeout, which in turn might cause the failure to close a
connection).
The OOM itself migth be either transient or persistent:
- transient: too many getmap requests working in parallel, maybe with no or
high per request memory
limits, that bring the JVM to the OOM
- permanent: somewhere there is a memory leak that accumulates and reduces
the free memory to 0
Telling them apart is normally easy, the memory leak leaves you no other
choice but to kill
the java virtual machine and restart it, the other solves itself when the
request load goes down
Which one is yours?
If you determine it's a memory leak please use jmap -histo, as described
here:
http://docs.geoserver.org/latest/en/user/production/troubleshooting.html#jmap
so that we can have a look at what is using the memory
Also, please provide details about your installation as suggested by the
user
posting guide:
http://geoserver.org/display/GEOS/GeoServer+user+list+posting+guidelines
Cheers
Andrea
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