Stuck Threads causing Performance Issues with WebCenter Spaces while Doing Login, Rendering Pages or Navigating (Doc ID 1405093.1)

Last updated on JANUARY 18, 2017

Applies to:

Oracle WebCenter Portal - Version 11.1.1.5.0 to 11.1.1.5.0 [Release 11g]
Information in this document applies to any platform.

Symptoms

 

WebCenter Spaces has Performance Issues.

Performance issues are observed while Doing Login, Rendering Pages or Navigating.

 

Generated Thread dumps of the WebCenter Managed Server Process (PID) as follows:

$ while true ; do kill -3 <pid>; sleep 10 ; done

 

The Thread Dump showed stuck threads like the following one:

[STUCK] ExecuteThread: '0' for queue: 'weblogic.kernel.Default
(self-tuning)'" id=19 idx=0x50 tid=5167 prio=1 alive, waiting,
native_blocked, daemon
-- Waiting for notification on: java/util/HashMap@0x11fe837d0[fat lock]
at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native
Method)

at java/lang/Object.wait(J)V(Native Method)
at oracle/ias/cache/groupv2/Client.waitForToken(Client.java:596)
^-- Lock released while waiting: java/util/HashMap@0x11fe837d0[fat lock]
at oracle/ias/cache/groupv2/Client.acquireTotalOrderToken(Client.java:666)
at oracle/ias/cache/groupv2/Client.send(Client.java:352)[optimized]
at oracle/ias/cache/groupv2/GroupMember.send(GroupMember.java:222)[optimized]
at oracle/ias/cache/groupv2/GroupMember.multicast(GroupMember.java:685)
at oracle/ias/cache/Net.broadcast(Net.java:332)[optimized]
at oracle/ias/cache/Net.broadcast(Net.java:380)
at oracle/ias/cache/CacheHandle.getOwnership(CacheHandle.java:3705)
at oracle/ias/cache/CacheHandle.getOwnership(CacheHandle.java:3567)
at oracle/ias/cache/CacheHandle.findObject(CacheHandle.java:1513)[optimized]
at oracle/ias/cache/CacheHandle.locateObject(CacheHandle.java:1118)[inlined]
at oracle/ias/cache/CacheAccess.get(CacheAccess.java:710)[optimized]
...

 

 

Cause

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