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From "Marco Laponder (JIRA)" <j...@apache.org>
Subject [jira] Created: (GERONIMO-5200) high cpu load, probably result of concurrent access of resourcesNotFound in MultiParentClassLoader
Date Tue, 23 Mar 2010 06:50:27 GMT
high cpu load, probably result of concurrent access of resourcesNotFound in MultiParentClassLoader
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                 Key: GERONIMO-5200
                 URL: https://issues.apache.org/jira/browse/GERONIMO-5200
             Project: Geronimo
          Issue Type: Bug
      Security Level: public (Regular issues)
          Components: core
    Affects Versions: 2.2
         Environment: Linux 64 bits, geronimo 2.2 build 2009.12.07-18:20:06.045-0800
            Reporter: Marco Laponder
         Attachments: thread.dump

Sometimes during the use of our webapplication the cpu of our server has extereme high load
caused by geronimo which stays high forever untillI stop geronimo. I have created a thread
dump when the cpu load is high (attached to this jira).  Suspicious in this thread dump are
multiple thread in the containsKey. 

As not all the access of the resourcesNotFOund map is not synchronized this could be the cause
of the problem as this might result in a infinite loop when the contains method is called
during a map resize. 

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