Hi all. I have about 8 or 9 JSPUI dspace installations in a server which has 3 GB of RAM. Four of them are active and the other ones are smaller projects that mostly don't get used. After our last install, 1.6.2 JSPUI, which is an image repository, I started getting tomcat hangs almost hourly, or at least a few times a day, and a restart is required. Sometimes even not related to the usage of that repository but when another one is used (perfectly working before). I was wondering if this new image repository, precisely because it hosts images, thumbnails, etc, may be hogging the resources. The strange thing is that the hangs sometimes happen even when another repo is being used. Some hangs are "PermGen" but others just don't output anything in the logs.
Also, I sometimes leave "parallel" webapps in the tomcat deploy dir, which are copies of a webapp with some new modification I want to try. And sometimes I leave a few directories like that in there. Sort of a primitive version control system :). I was wondering if maybe tomcat tends to try to deploy everything it sees in the deploy directory, and maybe those parallel webapps are contributing to the hangs. I removed them all and things seem to have improved some, but this is not definitive. Is this possible? Does it make sense? Another important part of this problem is that I can't seem to assign specific memory parameters to tomcat. I've read the Performance Tuning tips https://wiki.duraspace.org/display/DSDOC18/Performance+Tuning+DSpace and I see that the variable to modify is CATALINA_OPS, but they don't say in what file. I guess it depends on the operating system. I'm on Debian. I tried adding something like CATALINA_OPTS="-Xms1025m -Xmx1024m -XX:PermSize=1024m -XX:MaxPermSize=2048m -XX:+DisableExplicitGC XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled" in [tomcat]/bin/catalina.sh [tomcat]/bin/setenv.sh [tomcat]/bin/startup.sh and inside /etc/init.d/tomcat but none seems to work. When I run ps aux | grep tomcat I don't see the new parameters added. How could I make this work? Lastly, here's a stacktrace from the most common error I get (although this doesn't hang tomcat) 19-mar-2012 1:13:57 org.apache.catalina.core.StandardHostValve custom GRAVE: Exception Processing ErrorPage[exceptionType=java.lang.Exception, location=/internal-error] java.lang.IllegalStateException at org.apache.coyote.Response.reset(Response.java:297) at org.apache.catalina.connector.Response.reset(Response.java:653) at org.apache.catalina.connector.Response.reset(Response.java:920) at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:357) at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:213) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:662) -- ------------------------------------------------------------------------------- MartÃn Musacchio Centro de Telemática - UNL Pje. Martinez 2652 - S3002AAB Santa Fe - Argentina tel +54(342)455-4245 - FAX +54(342)457-1240 ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
