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Date: Wed, 9 Apr 2008 23:56:46 -0700 (PDT)
From: "Rob Davies (JIRA)" <jira@apache.org>
To: dev@activemq.apache.org
Subject: [jira] Assigned: (AMQ-1215) ArrayIndexOutOfBoundsException during
 ServerSessionPoolImpl.getServerSession()
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     [ https://issues.apache.org/activemq/browse/AMQ-1215?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rob Davies reassigned AMQ-1215:
-------------------------------

    Assignee: Rob Davies

> 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
>            Assignee: Rob Davies
>             Fix For: 5.1.0
>
>
> 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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