High CPU Usage with Stuck Thread at RoleAssignmentPolicyDecisionPoint (Doc ID 1481358.1)

Last updated on FEBRUARY 21, 2017

Applies to:

Oracle WebLogic Server - Version 10.3.5 to 12.1.1.0
Information in this document applies to any platform.

Symptoms

High CPU usage occurs. Observations show that it is because stuck threads while managing the java.util.HashMap in the WebLogic Server (WLS) RoleAssignment and RoleMapper.

The HashMap seems corrupted due to the non-concurrent puts. The corrupted hashmap operations usually results in the high CPU. See the following dumped thread.

Cause

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