Dear Geoserver Users,
I have deployed a new geoserver.war in a new tomcat instance. Currently I cannot work with it, because my http/ajp mapping isn’t configured correctly.
Besides that, I get the following output in the catalina.out log. (see the log below)
There seems to be a problem with a memory leak and the Threadpool.
Can you give me a hint what is going wrong and if that is a problem.
Thank you in advance.
Regards,
Christoph
On Fri, Apr 10, 2015 at 1:28 PM, Christoph Kleih <christoph.kleih@anonymised.com>
wrote:
Dear Geoserver Users,
I have deployed a new geoserver.war in a new tomcat instance. Currently I
cannot work with it, because my http/ajp mapping isn't configured correctly.
Besides that, I get the following output in the catalina.out log. (see the
log below)There seems to be a problem with a memory leak and the Threadpool.
Can you give me a hint what is going wrong and if that is a problem.
It's a known issue without an easy solution, GeoServer is a complex, large
web applications
that uses a set of technologies which weren't exactly meant to be used in a
webapp context (emf, jai).
I've tried to fix those errors spending a few days some years ago, without
any luck, and in time,
more of them piled up (since nobody managed to solve them all, and it does
not make a difference
if you get 1 or 100 of them, you still end up with a permgen leak).
The usual approach is to deploy GeoServer in its own private Tomcat, and
shut it down when
you need to redeploy. Not as bad as it sounds, considering that GeoServer
will force you to
increase the permgen settings anyways (at least 128m) and under load it
ends up eating a
good portion of your heap (each WMS request allocates a few megabytes of
heap for the
drawing surface, large ones can reach the tens of MB, by the time you have
some concurrent load
using a couple GB of memory is not uncommon)
Cheers
Andrea
Ing. Andrea Aime
@geowolf
Technical Lead
GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549
http://www.geo-solutions.it
http://twitter.com/geosolutions_it
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