java.lang.OutOfMemoryError: Java heap space

ArunSelvaraj

Hi Experts,

Facing this issue in the Documentum Method Server

Our Environment is Content Server 6.5SP1 HP Unix

• We are having around 5 Repositories.
• Each repositories are dedicated to separate web applications
• Using DFS all the applications interacting with Documentum.

Recently we are facing this issue in the production server. All threads got struck and method server hangs.

Please share your ideas on this issue. Below is the log which we getting in the method server log.

1. java.lang.OutOfMemoryError: Java heap space

2012-10-01 00:35:31,233 ERROR [STDERR] Exception in thread "http-0.0.0.0-9080-21"

2012-10-01 00:35:31,233 ERROR [STDERR] java.lang.NullPointerException

2012-10-01 00:35:31,233 ERROR [STDERR] at java.util.concurrent.ConcurrentLinkedQueue.offer(ConcurrentLinkedQueue.java:180)

2012-10-01 00:35:31,233 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler$1.offer(Http11Protocol.java:532)

2012-10-01 00:35:31,233 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler$1.offer(Http11Protocol.java:549)

2012-10-01 00:35:31,233 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:613)

2012-10-01 00:35:31,233 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

2012-10-01 00:35:31,233 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)

2012-10-01 00:35:31,255 INFO  [STDOUT] 00:35:31,220 ERROR [http-0.0.0.0-9080-7] org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/DmMethods].[DoMethod] - Servlet.service() for servlet DoMethod threw exception

1. java.lang.OutOfMemoryError: Java heap space

Below are the params used in startMethodServer.sh

USER_MEM_ARGS="-Xms1024m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=256m -Xss25

6k -XX:+DisableExplicitGC"startDCTMMethodServer.sh  template

export USER_MEM_ARGS startMethodServer.sh

/opt/app/prd/dctmcs/documentum/shared/jboss4.2.0/bin/run.sh -c DctmServer_Method

Server -b 0.0.0.0 $JAVA_OPTIONS

Thanks in Advance

Arun S

aflowers001

Do you only use the DFS supplied as an install in the method server? If so then best practice is to install DFS into a separate web application on a separate server such that you can better control what is happening, and you don't then have the method server overloaded, remember that the method server is also running the 'server methods' which can a times take quite a bit of memory/processing power.