It is recommended that you install JDK on your system before using the following commands.

• Get the process id of the Controller to use in subsequent commands.

  ps -ef | grep java

• Get the heap dump before garbage collection using the following command:

  <java-jdk-install-dir>/bin/jmap -dump:format=b,file=heap_before_live.bin <Controller_pid>

• Get the histogram before garbage collection using the following command:

  <java-jdk-install-dir>/bin/jmap -histo <Controller_pid> | head -200 > histo_before_live.txt

• Get the histogram after garbage collection using the following command:

  <java-jdk-install-dir>/bin/jmap -histo:live <Controller_pid> | head -200 > histo_after_live.txt