CA Output Management Web Viewer 12.1 and F5 Load Balancer throws Exception Error

Document ID : KB000007907
Last Modified Date : 14/02/2018
Show Technical Document Details
Issue:

Getting com.ca.erm.webviewer.control.AdminPrefDetailBean: getPrefList - Database Query(selectPreferences) fails. Attempting to execute an operation on a closed EntityManagerFactory.

when configuring the f5 load balancer to make health checks on CA Output Management Web Viewer 12.1.

Environment:
f5 load balancer
Cause:

The Load Balancer was looking at Web Viewer login.jsf or login.jsp files to ensure the application was alive - that caused the number of sessions on Tomcat to grow to over 750. 

Resolution:

Configuring the f5 load balancer to use a ping.html page to ensure the Web Viewer application was alive avoided the problem.

Additional Information: