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From "Francesco Vivoli (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-1215) ArrayIndexOutOfBoundsException during ServerSessionPoolImpl.getServerSession()
Date Wed, 28 Mar 2007 08:06:34 GMT
ArrayIndexOutOfBoundsException during ServerSessionPoolImpl.getServerSession()
------------------------------------------------------------------------------

                 Key: AMQ-1215
                 URL: https://issues.apache.org/activemq/browse/AMQ-1215
             Project: ActiveMQ
          Issue Type: Bug
          Components: Connector
    Affects Versions: 4.1.0
         Environment: uname -a:
Linux  2.6.9-42.0.3.plus.c4smp #1 SMP Fri Oct 6 12:16:15 CDT 2006 i686 i686 i386 GNU/Linux

java -version:
java version "1.6.0"
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java HotSpot(TM) Server VM (build 1.6.0-b105, mixed mode)

JVM options:
 -Dcom.sun.management.jmxremote -server -Xmx1024m

ActiveMQ revision: 516005
JCA connector is Jencks 2.0
Using spring 2.0

            Reporter: Francesco Vivoli


After some hours of execution my service stopped consuming messages; the log file shows this:

2007-03-23 18:26:18,573 [ool-1-thread-21] ERROR ServerSessionPoolImpl          - Error redispatching
unconsumed messages from stale session
java.lang.IndexOutOfBoundsException: Index: 73, Size: 73
        at edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList.remove(CopyOnWriteArrayList.java:346)
        at org.apache.activemq.ra.ServerSessionPoolImpl.getServerSession(ServerSessionPoolImpl.java:104)
        at org.apache.activemq.ra.ServerSessionPoolImpl.dispatchToSession(ServerSessionPoolImpl.java:138)
        at org.apache.activemq.ra.ServerSessionPoolImpl.removeFromPool(ServerSessionPoolImpl.java:180)
        at org.apache.activemq.ra.ServerSessionImpl.run(ServerSessionImpl.java:179)
        at org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:290)
        at org.apache.geronimo.connector.work.pool.NamedRunnable.run(NamedRunnable.java:32)
        at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:619)
2007-03-23 18:26:18,575 [ol-1-thread-127] ERROR ServerSessionPoolImpl          - Error redispatching
unconsumed messages from stale session
java.lang.IndexOutOfBoundsException: Index: 67, Size: 67
        at edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList.remove(CopyOnWriteArrayList.java:346)
        at org.apache.activemq.ra.ServerSessionPoolImpl.getServerSession(ServerSessionPoolImpl.java:104)
        at org.apache.activemq.ra.ServerSessionPoolImpl.dispatchToSession(ServerSessionPoolImpl.java:138)
        at org.apache.activemq.ra.ServerSessionPoolImpl.removeFromPool(ServerSessionPoolImpl.java:180)
        at org.apache.activemq.ra.ServerSessionImpl.run(ServerSessionImpl.java:179)
        at org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:290)
        at org.apache.geronimo.connector.work.pool.NamedRunnable.run(NamedRunnable.java:32)
        at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:619)
2007-03-23 18:26:18,583 [ol-1-thread-116] ERROR ServerSessionPoolImpl          - Error redispatching
unconsumed messages from stale session
java.lang.IndexOutOfBoundsException: Index: 65, Size: 65
        at edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList.remove(CopyOnWriteArrayList.java:346)
        at org.apache.activemq.ra.ServerSessionPoolImpl.getServerSession(ServerSessionPoolImpl.java:104)
        at org.apache.activemq.ra.ServerSessionPoolImpl.dispatchToSession(ServerSessionPoolImpl.java:138)
        at org.apache.activemq.ra.ServerSessionPoolImpl.removeFromPool(ServerSessionPoolImpl.java:180)
        at org.apache.activemq.ra.ServerSessionImpl.run(ServerSessionImpl.java:179)
        at org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:290)
        at org.apache.geronimo.connector.work.pool.NamedRunnable.run(NamedRunnable.java:32)
        at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
        at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
        at java.lang.Thread.run(Thread.java:619)



the org.jencks.JCAConnector is configured as follows:

    <bean id="inboundConnectorStage1" class="org.jencks.JCAConnector" lazy-init="true">
        <property name="jcaContainer" ref="jencksJCAContainer1"/>
        <property name="activationSpec">
            <bean class="org.apache.activemq.ra.ActiveMQActivationSpec">
                <property name="destination" value="stage1Queue"/>
                <property name="destinationType" value="javax.jms.Queue"/>
                <property name="acknowledgeMode" value="Dups-ok-acknowledge"/>
                <property name="maxSessions" value="${stage1.maxSessions}"/>
                <property name="maxMessagesPerSessions" value="${stage1.maxSessions}"/>
            </bean>
        </property>
        <property name="ref" value="stage1"/>
    </bean>


where initially stage1.maxSessions=250 and the threadpool size was set to 300.
I have been able to avoid this problem reducing the concurrency, but of course this
is not the solution.

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