PermGen Space

[patrickdalla]

Hi,

I am frequently seeing OutOfMemoryException with PermGen space description.

I'm using Jboss-Portal and MyFacesPortlet. Don't know which is causing the problem.

How can I avoid this?

[schnelzer]

In your run.bat or run.sh try setting the MaxPermSize and PermSize to 128m. We did this and its seems to have solved the issue for us. The setting are -XX:PermSize=128m and -XX:MaxPermSize-128m. The are some tools in JDK 1.5 bin directory if you are using 1.5 that are helpful.

[khalidhafeez]

Hi,
Could u please let me know at which place it should be written in run.bat ?
thanx

[emuckenhuber]

You could also use the JAVA_OPTS in the bin/run.conf, which is maybe easier to find.

[bdaw]

In the AS /bin directory look for the run.conf file. You need to make it:

if [ "x$JAVA_OPTS" = "x" ]; then
 JAVA_OPTS="-Xms128m -Xmx512m -XX:PermSize=128m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000"
fi

[sisepago]

Hi patrickdalla,

take a look at my blog, there I explained how to solve the java.lang.OutOfMemoryError: PermGen space problem.

[pmn92]

The problem appears due to hibernate consuming a lot of perm gen!

It should be in a wiki, release note, documentation - or even set by default - but it is not :-(

To fix MaxPermSize :

in jboss server, customize the "run.bat" file

set JAVA_OPTS=%JAVA_OPTS% -Xms512m -Xmx1274m -XX:MaxPermSize=256m -Dcom.sun.management.jmxremote


To fix it within eclipse, use 3.3.1 or above, and customize the eclipse.ini file to include something like that

-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vmargs
-Xms40m
-Xmx512m

[theute]

http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossPortalFAQ last question