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From Henri Gomez <henri.go...@gmail.com>
Subject Manager error under heavy load
Date Thu, 12 Feb 2009 13:25:05 GMT
Hi to all,

I see this error on Tomcat 6.0.16 (IBM JDK 6.0 SR1 on Linux SLES 10).

WARNING: Exception processing manager
org.apache.catalina.session.StandardManager@2aea2aea background
process
Throwable occurred: java.lang.IllegalMonitorStateException
        at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(ReentrantLock.java:140)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(AbstractQueuedSynchronizer.java:1188)
        at java.util.concurrent.locks.ReentrantLock.unlock(ReentrantLock.java:444)
        at java.util.concurrent.ConcurrentHashMap$Segment.remove(ConcurrentHashMap.java:555)
        at java.util.concurrent.ConcurrentHashMap.remove(ConcurrentHashMap.java:936)
        at org.apache.catalina.session.ManagerBase.remove(ManagerBase.java:885)
        at org.apache.catalina.session.StandardSession.expire(StandardSession.java:743)
        at org.apache.catalina.session.StandardSession.isValid(StandardSession.java:592)
        at org.apache.catalina.session.ManagerBase.processExpires(ManagerBase.java:682)
        at org.apache.catalina.session.ManagerBase.backgroundProcess(ManagerBase.java:667)
        at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1316)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
        at java.lang.Thread.run(Thread.java:735)

It appears when we release expired sessions after an heavy load
(between 50 and 100 sessions).

Did someone allready get this ?

Regards

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