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can anyone explain about this error message? we are using IBM jre to run java application Its occupying more space on the server.

JVMDUMP006I Processing dump event "systhrow", detail "java/lang/OutOfMemoryError" - please wait.
JVMDUMP006I Processing dump event "systhrow", detail "java/lang/OutOfMemoryError" - please wait.
JVMDUMP032I JVM requested Heap dump using '/home/sathish/jetty6/heapdump.20110417.114115.18926.0001.phd' in response to an event
JVMDUMP010I Heap dump written to /home/sathish/jetty6/heapdump.20110417.114115.18926.0001.phd
JVMDUMP032I JVM requested Heap dump using '/home/sathish/jetty6/heapdump.20110417.114115.18926.0002.phd' in response to an event
JVMDUMP010I Heap dump written to /home/sathish/jetty6/heapdump.20110417.114115.18926.0002.phd
JVMDUMP032I JVM requested Heap dump using '/home/sathish/jetty6/heapdump.20110417.114115.18926.0003.phd' in response to an event
JVMDUMP010I Heap dump written to /home/sathish/jetty6/heapdump.20110417.114115.18926.0003.phd
JVMDUMP032I JVM requested Java dump using '/home/sathish/jetty6/javacore.20110417.114115.18926.0004.txt' in response to an event
JVMDUMP010I Java dump written to /home/sathish/jetty6/javacore.20110417.114115.18926.0004.txt
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Give it more memory? – Ignacio Vazquez-Abrams Apr 18 '11 at 5:04
Thanks. we have given the heap size memory -Xms3000M -Xmx3000M, is that ok or do we need increase the memory? our RAM size is 7.6 GB. – sathishkumar Apr 18 '11 at 5:21
Could indicate a memory leak (i.e. a bug in the application that causes it to keep memory/objects around that should not be kept). – Robin Green Apr 18 '11 at 7:31
You can increase the memory on the instance, I have a Jboss server running at -Xms2000M -Xmx6500M. I opt for the lower -Xms because spawned processes will take that as their initial memory footprint. It will cause issues if it is too high and you spawn sub processes. – Flashman Apr 18 '11 at 14:37
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Just pass this to the JVM:

-Xms3gb -Xmx3gb -XX:+HeapDumpOnOutOfMemoryError -XX:PermSize=128m -XX:MaxPermSize=256m

PermSize is pre-allocated and doesn't increase unless you tell it to (as far as I know) and so running out of this memory space can cause a out of memory error.

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