How to Modify or Increase Enterprise Manager Cloud Control Agent JVM Heap and Permgen Memory

How to Modify or Increase Enterprise Manager Cloud Control Agent JVM Heap and Permgen Memory

Steps:

1) Stop agent 

$/AGENT_INST/bin/emctl stop agent

If agent does not shutdown gracefully then kill all agent background processes by first find for agent perl and java processes only

$ps -ef | grep java | grep '<agent_home >'

$ps -ef | grep perl

$kill -9  <Process id>

2) Take backup and edit /AGENT_INST/sysman/config/emd.properties file

default

agentJavaDefines=-Xmx128M -XX:MaxPermSize=96M

new

agentJavaDefines=-Xmx512M -XX:MaxPermSize=128M

OR

Following commands can be used to modify those parameters instead of changing a file.

$/AGENT_INST/bin/emctl setproperty agent -name 'agentJavaDefines' -value '-Xmx512M -XX:MaxPermSize=128M'

3) Restart agent

$/AGENT_INST/bin/emctl start agent

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