F5 Load Balancer throws Exception Error Web Viewer 12.1

Products

• Output Management Web Viewer

Issue/Introduction

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 Output Management Web Viewer 12.1.

Environment

f5 load balancer

Output Management Web Viewer 12.1

WBVLUW

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