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java.lang.OutOfMemoryError or Java process hang and a significant number of ORB threads in the thread dumps

Troubleshooting


Problem

This problem would likely manifest itself as a hung Application Server. In the javacore or thread dump of the process, a large number of ORB threads with thread ids beginning with RT=# or LT=# will be observed.

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Object Request Broker (ORB)","Platform":[{"code":"PF002","label":"AIX"}],"Version":"8.5.5;8.5;8.0;7.0","Edition":"","Line of Business":{"code":"LOB77","label":"Automation Platform"}},{"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":"Java SDK","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

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Document Information

Modified date:
03 March 2025

UID

swg21224719