Out of Memory error starting JBoss with Portal from Eclipse

Question

I cannot get JBoss Portal to start from Eclipse, though the AS alone starts fine, and the Portal starts correctly as well, when started from the command line as opposed to from within Eclipse. I'm running in Windows, with 3GB. Suggestions? Thank you.

Answer 1

You need to increase the memory you're allocating to Java, in particular heap space and PermGen. This article is highly relevant. It mentions that this issue often occurs with Eclipse and JBoss (since both are fairly large), and provides a solution (adjusting the command-line flags).

Answer 2

There are different types of OutOfMemory errors:

java.lang.OutOfMemoryError: Java heap space

Increase the -Xms and -Xmx. I'd make sure they are set at least 256m and generally it's a good idea to set them to the same value.

java.lang.OutOfMemoryError: PermGen space

Add either -XX:+CMSPermGenSweepingEnabled or increase the PermGen size: -XX:PermSize=256m

java.lang.OutOfMemoryError: GC overhead limit exceeded

Add more heap, the garbage collector can't free enough memory with each cycle. Also try turning on GC logging.

java.lang.OutOfMemoryError: unable to create new native thread

Decrease your heap :) This means that you have too much memory allocated to the heap that the OS doesn't have enough memory to create threads..

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Two last things, the above can be configured in jboss/bin/run.conf.

Also when starting JBoss see what -X parameters are being passed to the JVM, it prints this information by default, verify that it's what you expect it to be.

Answer 3

What are you using for running portal from eclipse? Maybe Jboss tools can help you http://www.jboss.org/tools