Changing the console session expiration WebSphere Application Server 8.5.5

/opt/IBM/WebSphere/AppServer/profiles/Dmgr01/config/cells/test1was855Cell01/applications/isclite.ear/deployments/isclite

In above directory , modify deployment.xml by setting  invalidationTimeout parameter to the value you want and  restart the Deployment Manager

Or  use scripts  below :

http://lnubla.wordpress.com/2014/03/12/changing-the-console-session-expiration/

http://www-01.ibm.com/support/knowledgecenter/SSAW57_7.0.0/com.ibm.websphere.nd.multiplatform.doc/info/ae/isc/cons_sessionto.html?lang=en