Hi,
I suggest you try to find out what is eating your memory.
You could either create a heap dump with "jmap -dump:format=b,file=dump.hprof <pid>" and analyze it with a heap dump analyzer of your choice (e.g. VisualVM, Eclipse HeapDump Analyzer) or you could issue a "jmap -histo:live <pid>" and take a look at the class histogram.
You can find out the PID of the GlassFish process with "jps". The process is called PELaunch.
HTH,
Chris
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