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Posted to dev@tomcat.apache.org by bu...@apache.org on 2008/01/15 18:59:27 UTC
DO NOT REPLY [Bug 44245] New: - ConcurrentModificationException in tomcat 5.5 cluster
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Summary: ConcurrentModificationException in tomcat 5.5 cluster
Product: Tomcat 5
Version: 5.5.25
Platform: Other
OS/Version: other
Status: NEW
Severity: normal
Priority: P1
Component: Catalina:Cluster
AssignedTo: tomcat-dev@jakarta.apache.org
ReportedBy: jlerbsc@hotmail.com
CC: jlerbsc@hotmail.com
Env:
Tomcat Version 5.5.25
Platform
OS Linux xxx 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64 x86_64
x86_64 GNU/Linux
JVM :
java version "1.5.0_12"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_12-b04)
BEA JRockit(R) (build R27.4.0-90-89592-1.5.0_12-20070928-1715-linux-x86_64,
compiled mode)
Web Server Apache 2.0.59 and mod_jk-1.2.25
Apache jk/worker conf:
----------------------
worker.list=balancer
worker.balancer.type=lb
worker.balancer.balance_workers=asur,asmar
worker.balancer.sticky_session=1
worker.asur.host=xxxxxxxxx
worker.asur.port=8009
worker.asur.type=ajp13
worker.asur.lbfactor=1
worker.asur.activation=disabled
worker.asmar.host=xxxxxxx
worker.asmar.port=8009
worker.asmar.type=ajp13
worker.asmar.lbfactor=1
worker.asmar.redirect=asur
Cluster configuration:
----------------------
<Cluster className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
doClusterLog="true"
clusterLogName="clusterlog"
managerClassName="org.apache.catalina.cluster.session.SimpleTcpReplicationManager"
expireSessionsOnShutdown="false"
replicationMode="pooled"
notifyListenersOnReplication="true">
<Membership
className="org.apache.catalina.cluster.mcast.McastService"
mcastAddr="228.0.0.4"
mcastPort="45564"
mcastFrequency="500"
mcastDropTime="3000"/>
<Receiver
className="org.apache.catalina.cluster.tcp.ReplicationListener"
tcpListenAddress="xxxxxx"
tcpListenPort="4001"
tcpSelectorTimeout="100"
tcpThreadCount="6"/>
<Sender
className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"
replicationMode="pooled"
ackTimeout="15000"
waitForAck="true"/>
<Valve className="org.apache.catalina.cluster.tcp.ReplicationValve"
filter=".*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.*\.html;.*\.css;.*\.txt;"/>
<Deployer className="org.apache.catalina.cluster.deploy.FarmWarDeployer"
tempDir="/tmp/war-temp/"
deployDir="/tmp/war-deploy/"
watchDir="/tmp/war-listen/"
watchEnabled="false"/>
<ClusterListener
className="org.apache.catalina.cluster.session.ClusterSessionListener"/>
</Cluster>
Problem:
--------
Tomcat server logs this exception.
Could you explain us what's hapenning. Thanks.
SEVERE: Failed to serialize the session!
java.util.ConcurrentModificationException
at
org.apache.commons.collections.SequencedHashMap$OrderedIterator.next(SequencedHashMap.java:757)
at org.apache.commons.collections.LRUMap.writeExternal(LRUMap.java:174)
at
java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1310)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1288)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
at
org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1478)
at
org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:948)
at
org.apache.catalina.cluster.session.ReplicatedSession.writeObjectData(ReplicatedSession.java:189)
at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.writeSession(SimpleTcpReplicationM
anager.java:353)
at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.requestCompleted(SimpleTcpReplicat
ionManager.java:317)
at
org.apache.catalina.cluster.tcp.ReplicationValve.send(ReplicationValve.java:549)
at
org.apache.catalina.cluster.tcp.ReplicationValve.sendMessage(ReplicationValve.java:536)
at
org.apache.catalina.cluster.tcp.ReplicationValve.sendSessionReplicationMessage(ReplicationValve.ja
va:518)
at
org.apache.catalina.cluster.tcp.ReplicationValve.sendReplicationMessage(ReplicationValve.java:428)
at
org.apache.catalina.cluster.tcp.ReplicationValve.invoke(ReplicationValve.java:362)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:595)
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DO NOT REPLY [Bug 44245] - ConcurrentModificationException in tomcat 5.5 cluster
Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=44245>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
INSERTED IN THE BUG DATABASE.
http://issues.apache.org/bugzilla/show_bug.cgi?id=44245
markt@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
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DO NOT REPLY [Bug 44245] - ConcurrentModificationException in tomcat 5.5 cluster
Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=44245>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
INSERTED IN THE BUG DATABASE.
http://issues.apache.org/bugzilla/show_bug.cgi?id=44245
fhanik@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
------- Additional Comments From fhanik@apache.org 2008-01-15 10:25 -------
Post your question on the Tomcat User mailing list, someone may help you there.
Unfortunately we can't use bugzilla as a support forum.
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DO NOT REPLY [Bug 44245] - ConcurrentModificationException in tomcat 5.5 cluster
Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=44245>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
INSERTED IN THE BUG DATABASE.
http://issues.apache.org/bugzilla/show_bug.cgi?id=44245
jlerbsc@hotmail.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
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