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From "Kevan Miller (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (GERONIMO-5200) high cpu load, probably result of concurrent access of resourcesNotFound in MultiParentClassLoader
Date Tue, 23 Mar 2010 12:01:28 GMT

     [ https://issues.apache.org/jira/browse/GERONIMO-5200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kevan Miller reassigned GERONIMO-5200:
--------------------------------------

    Assignee: Kevan Miller

> high cpu load, probably result of concurrent access of resourcesNotFound in MultiParentClassLoader
> --------------------------------------------------------------------------------------------------
>
>                 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
>            Assignee: Kevan Miller
>         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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