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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 30139] New: - heavy load - ConcurrentModificationException
Date Fri, 16 Jul 2004 08:08:09 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=30139

heavy load - ConcurrentModificationException

           Summary: heavy load - ConcurrentModificationException
           Product: Tomcat 4
           Version: 4.1.30
          Platform: HP
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Connector:Coyote HTTP/1.1
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: y-ikeno@fiosys.co.jp


Hello

Tomcat 4.1.30
Under heavy load, we seem to be getting this error every once in a while: 
=========================================================================
java.util.ConcurrentModificationException
        at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:
444)
        at java.util.AbstractList$Itr.remove(AbstractList.java:429)
        at java.util.AbstractCollection.remove(AbstractCollection.java:251)
        at org.apache.coyote.RequestGroupInfo.
removeRequestProcessor(RequestGroupInfo.java:17)
        at org.apache.coyote.RequestInfo.setGlobalProcessor(RequestInfo.java:96)
        at org.apache.coyote.http11.Http11Protocol$MXPoolListener.
threadEnd(Http11Protocol.java:630)
        at org.apache.tomcat.util.threads.ThreadPool.removeThread(ThreadPool.
java:281)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.
run(ThreadPool.java:731)
        at java.lang.Thread.run(Thread.java:536)
=========================================================================


server.xml
=========================================================================
    <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
               address="tcssc01"
               port="8080" minProcessors="20" maxProcessors="300"
               enableLookups="true" redirectPort="8443"
               acceptCount="300" debug="0" connectionTimeout="20000"
               useURIValidationHack="false" disableUploadTimeout="true" />
=========================================================================

Thanks,
Yuto Ikeno

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