The Applications Manager java processes are running fine but certain Java/Groovy jobs are failing with out of memory errors. For these jobs the following error is observed in the AM output files:
JVMDUMP006I Processing Dump Event "systhrow", detail "java/lang/OutOfMemoryError" - Please Wait.
JVMDUMP007I JVM Requesting Snap Dump using '/home/appworx/run/Snap.20130311.091528.18939918.0001.trc'
JVMDUMP010I Snap Dump written to /home/appworx/run/Snap.20130311.091528.18939918.0001.trc
JVMDUMP007I JVM Requesting Heap Dump using '/home/appworx/run/heapdump.20130311.091528.18939918.0002.phd'
JVMDUMP010I Heap Dump written to /home/appworx/run/heapdump.20130311.091528.18939918.0002.phd
JVMDUMP007I JVM Requesting Java Dump using '/home/appworx/run/javacore.20130311.091528.18939918.0003.txt'
JVMDUMP010I Java Dump written to /home/appworx/run/javacore.20130311.091528.18939918.0003.txt
JVMDUMP013I Processed Dump Event "systhrow", detail "java/lang/OutOfMemoryError".
The java process specific to the job is running out of memory and core-dumping. This causes the job to fail as well.
Increasing the java -Xmx argument for the JVM which is specific to the groovy or java job/program (depending on what is being run) should resolve the issue.