JBoss ON event purge job results in OutOfMemoryError when there are several millions of event entries

Solution Verified - Updated -

Issue

  • GC overhead limit exceeded ERROR:

    ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/jboss-remoting-servlet-invoker].[ServerInvokerServlet]] (http-/hostname:7080-127) JBWEB000236: Servlet.service() for servlet ServerInvokerServlet threw exception: java.lang.OutOfMemoryError: GC overhead limit exceeded

  • The thread RHQScheduler_Worker is exhausting memory when executing org.rhq.enterprise.server.purge.PurgeTemplate.loadKeys while purging old event data

Environment

  • Red Hat JBoss Operations Network (ON) 3.3
  • JBoss ON has stored over 10 million events that are now eligible for purge

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