Heapdump
 

Set up for enabling heap dump:

• For V6.0 release:
  
  1. To set the following Environment Entries from the administrative console: Select Servers > Application Servers >server_name> Java and Process Management > Process Definition > Environment Entries > NewAdd the following Name/Value pairs: IBM_HEAPDUMP true
     IBM_HEAP_DUMP true
     IBM_HEAPDUMPDIR your_directory IBM_HEAPDUMP_OUTOFMEMORY true
     IBM_JAVADUMP_OUTOFMEMORY true
  Make sure that you save changes to the master configuration
  
  
  
  
  
  
  When you create a Heap Dump in the Managing Server VE from the Heap Dump Management menu, the heap dumps get created in the $WAS_HOME/profiles/<ProfileName> dir.
  If you want to change this default directory to another dir, say /tmp add these new parameters in your WAS admin console (see first screenshot below) and restart your server.
  Now go back into your MS VE and create a new Heap Dump. You will see that the directory has changed from the default dir to the new dir /tmp. This is where the new Heap Dump is located. (See second screenshot here showing that the dir has changed from /opt/IBM/WebSphere/AppServer/profiles/AppSrv01 to the /tmp dir.)