Hi Jan Thanks for the advice, that’s really helpful.
An initial try with OpenJDK and a variety of the new memory options yields the same behaviour but I will experiment some more. If anyone has any other suggestions please let me know. Thanks again Tom On Mon, Mar 30, 2020 at 1:27 PM Jan Boonen <jan.boo...@geodan.nl> wrote: > Hi Tom, > > This is a common problem when running Java applications under Docker. It > depends on you Docker setup, but usually the container is not aware of the > memory limit that is imposed by Docker or the Docker host machine. This > video from last year's devoxx conference is a good starter to optimise and > tune Java images and containers: > https://www.youtube.com/watch?v=c16oOeTfFXM > > I'd advise you to run GeoServer using the latest OpenJDK 11 image > (tomcat:9.0.33-jdk11-openjdk-slim) and set a fixed memory limit on the > container. Use the Java Tool option -XX:MaxRAMPercentage to set the > required heap space. > > Hope this helps to tune the GC better. > > Cheers, > > Jan > > -------------------------------------- > Geodan > Buitenhaven 27-A > 5211 TP 's-Hertogenbosch (NL) > > T +31 (0)73 - 692 5151 > M +31 (0)6 - 2395 1191 > E jan.boo...@geodan.nl > www.geodan.nl | disclaimer <https://www.geodan.nl/disclaimer/> > -------------------------------------- > > > Op ma 30 mrt. 2020 om 12:33 schreef Tom <tomcol...@gmail.com>: > >> Hi all >> >> I am experiencing severe memory issues running Geoserver in a Kubernetes >> container. >> >> Running a simple JMeter test with a static GetMap request (point layer in >> PostGIS) with 30 concurrent requests, Geoserver memory usage steadily >> increases until it reaches the JVM limit and causes an out of heap memory >> error. >> >> I have tried various different GC and other JVM options but all behave in >> the same way. GC does seem to be operating as I can see the memory usage >> regularly going down, but not as quickly as it goes up. >> >> I am running Geoserver 2.15.2 with Oracle Corporation: 1.8.0_242 >> (OpenJDK 64-Bit Server VM) and Tomcat 9.0.20 on Ubuntu 16.04. >> >> The same Geoserver deployment within a local Vagrant VM runs the same >> JMeter test and remains stable, with memory usage not increasing over time. >> >> I'd be very grateful for any suggestions. >> >> Thanks >> >> Tom >> _______________________________________________ >> Geoserver-users mailing list >> >> Please make sure you read the following two resources before posting to >> this list: >> - Earning your support instead of buying it, but Ian Turton: >> http://www.ianturton.com/talks/foss4g.html#/ >> - The GeoServer user list posting guidelines: >> http://geoserver.org/comm/userlist-guidelines.html >> >> If you want to request a feature or an improvement, also see this: >> https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer >> >> >> Geoserver-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/geoserver-users >> > _______________________________________________ > Geoserver-users mailing list > > Please make sure you read the following two resources before posting to > this list: > - Earning your support instead of buying it, but Ian Turton: > http://www.ianturton.com/talks/foss4g.html#/ > - The GeoServer user list posting guidelines: > http://geoserver.org/comm/userlist-guidelines.html > > If you want to request a feature or an improvement, also see this: > https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer > > > Geoserver-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geoserver-users >
_______________________________________________ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
