After many PDF Generator conversions on JBoss, the conversions intermittently fail with an exception. This initially results in intermittent failures, but without a server restart, it can cause all operations to start failing. The error message seen in the logs is as follows:
org.omg.CORBA.NO_RESOURCES: (Pool)[0/1000] no idle threads but maximum number of threads reached (1000) vmcid: 0x0 minor code: 0 completed: No
The issue is caused by jacORB (the ORB bundled with JBoss) keeping a thread waiting to connect to a peer that is no longer available. Repeated occurrences of this situation causes threads to needlessly remain occupied, causing the thread pool to exhaust.
Red Hat provides the JBPAPP-10887 patch to resolve the issue on JBoss EAP 5.2.
The details about the patch are as follows:
You can obtain the patch directly from Red Hat support, and apply it as recommended. If you do not have a support contract with Red Hat, you can contact Adobe Enterprise Support to obtain the patch.
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