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Posted to users@tomcat.apache.org by Vl...@informa.com on 2005/02/11 18:47:59 UTC

dodgy session class

Hi,

 

I'm running tomcat 5.0.30 on two machines A and B (Linux RHAS3).

 

When tomcat A restarts it fails to sync session state with "session
state not received" or something to that effect and tomcat B logs this
message:

 

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] ERROR
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
Unable to receive message through TCP channel

java.lang.ClassCastException

        at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageR
eceived(SimpleTcpReplicationManager.java:530)

        at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageD
ataReceived(SimpleTcpReplicationManager.java:596)

        at
org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(Sim
pleTcpCluster.java:580)

        at
org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:70
)

        at
org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpRep
licationThread.java:129)

        at
org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationT
hread.java:67)

 

I changed SimpleTcpReplicationManager to output class names of the
sessions it is trying to cast to ReplicatedSession and got the following
picture:

 

11 Feb 2005 17:21:44 [Cluster-MembershipReceiver] INFO
org.apache.catalina.cluster.tcp.SimpleTcpCluster  - Replication member
added:org.apache.catalina.cluster.mcast.McastMember[tcp://192.168.56.21:
4001,192.168.56.21,4001, alive=3]

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.session.StandardSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] ERROR
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
Unable to receive message through TCP channel

java.lang.ClassCastException

        at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageR
eceived(SimpleTcpReplicationManager.java:530)

        at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageD
ataReceived(SimpleTcpReplicationManager.java:596)

        at
org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(Sim
pleTcpCluster.java:580)

        at
org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:70
)

        at
org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpRep
licationThread.java:129)

        at
org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationT
hread.java:67)

 

 

How come a clustered application would have sessions of type
org.apache.catalina.session.StandardSession? Does anyone have any ideas?

 

Regards,

Vlad




********************************************************************************
The information contained in this email message may be confidential. If you are not the intended recipient, any use, interference with, disclosure or copying of this material is unauthorised and prohibited. Although this message and any attachments are believed to be free of viruses, no responsibility is accepted by T&F Informa for any loss or damage arising in any way from receipt or use thereof.  Messages to and from the company are monitored for operational reasons and in accordance with lawful business practices. 
If you have received this message in error, please notify us by return and delete the message and any attachments.  Further enquiries/returns can be sent to postmaster@tfinforma.com


Re: dodgy session class

Posted by Peter Rossbach <pr...@objektpark.de>.
Hmm,

please check that all your applications with distributable=true have no 
configured Manager in there context.xml's

regards
Peter

Filip Hanik - Dev schrieb:

>Any chance you have a test case to reproduce this?
>Shouldn't happen, unless the way sessions are created have changed.
>
>Filip
>
>----- Original Message -----
>From: <Vl...@informa.com>
>To: <to...@jakarta.apache.org>
>Sent: Friday, February 11, 2005 11:47 AM
>Subject: dodgy session class
>
>
>Hi,
>
>
>
>I'm running tomcat 5.0.30 on two machines A and B (Linux RHAS3).
>
>
>
>When tomcat A restarts it fails to sync session state with "session
>state not received" or something to that effect and tomcat B logs this
>message:
>
>
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] ERROR
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>Unable to receive message through TCP channel
>
>java.lang.ClassCastException
>
>        at
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageR
>eceived(SimpleTcpReplicationManager.java:530)
>
>        at
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageD
>ataReceived(SimpleTcpReplicationManager.java:596)
>
>        at
>org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(Sim
>pleTcpCluster.java:580)
>
>        at
>org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:70
>)
>
>        at
>org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpRep
>licationThread.java:129)
>
>        at
>org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationT
>hread.java:67)
>
>
>
>I changed SimpleTcpReplicationManager to output class names of the
>sessions it is trying to cast to ReplicatedSession and got the following
>picture:
>
>
>
>11 Feb 2005 17:21:44 [Cluster-MembershipReceiver] INFO
>org.apache.catalina.cluster.tcp.SimpleTcpCluster  - Replication member
>added:org.apache.catalina.cluster.mcast.McastMember[tcp://192.168.56.21:
>4001,192.168.56.21,4001, alive=3]
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.cluster.session.ReplicatedSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>SessionClass=org.apache.catalina.session.StandardSession
>
>11 Feb 2005 17:21:49
>[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] ERROR
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
>Unable to receive message through TCP channel
>
>java.lang.ClassCastException
>
>        at
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageR
>eceived(SimpleTcpReplicationManager.java:530)
>
>        at
>org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageD
>ataReceived(SimpleTcpReplicationManager.java:596)
>
>        at
>org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(Sim
>pleTcpCluster.java:580)
>
>        at
>org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:70
>)
>
>        at
>org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpRep
>licationThread.java:129)
>
>        at
>org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationT
>hread.java:67)
>
>
>
>
>
>How come a clustered application would have sessions of type
>org.apache.catalina.session.StandardSession? Does anyone have any ideas?
>
>
>
>Regards,
>
>Vlad
>
>
>
>
>********************************************************************************
>The information contained in this email message may be confidential. If you are not the intended recipient, any use, interference
>with, disclosure or copying of this material is unauthorised and prohibited. Although this message and any attachments are believed
>to be free of viruses, no responsibility is accepted by T&F Informa for any loss or damage arising in any way from receipt or use
>thereof.  Messages to and from the company are monitored for operational reasons and in accordance with lawful business practices.
>If you have received this message in error, please notify us by return and delete the message and any attachments.  Further
>enquiries/returns can be sent to postmaster@tfinforma.com
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
>For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
>
>
>  
>


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Re: dodgy session class

Posted by Filip Hanik - Dev <de...@hanik.com>.
Any chance you have a test case to reproduce this?
Shouldn't happen, unless the way sessions are created have changed.

Filip

----- Original Message -----
From: <Vl...@informa.com>
To: <to...@jakarta.apache.org>
Sent: Friday, February 11, 2005 11:47 AM
Subject: dodgy session class


Hi,



I'm running tomcat 5.0.30 on two machines A and B (Linux RHAS3).



When tomcat A restarts it fails to sync session state with "session
state not received" or something to that effect and tomcat B logs this
message:



11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] ERROR
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
Unable to receive message through TCP channel

java.lang.ClassCastException

        at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageR
eceived(SimpleTcpReplicationManager.java:530)

        at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageD
ataReceived(SimpleTcpReplicationManager.java:596)

        at
org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(Sim
pleTcpCluster.java:580)

        at
org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:70
)

        at
org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpRep
licationThread.java:129)

        at
org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationT
hread.java:67)



I changed SimpleTcpReplicationManager to output class names of the
sessions it is trying to cast to ReplicatedSession and got the following
picture:



11 Feb 2005 17:21:44 [Cluster-MembershipReceiver] INFO
org.apache.catalina.cluster.tcp.SimpleTcpCluster  - Replication member
added:org.apache.catalina.cluster.mcast.McastMember[tcp://192.168.56.21:
4001,192.168.56.21,4001, alive=3]

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.cluster.session.ReplicatedSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] INFO
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
SessionClass=org.apache.catalina.session.StandardSession

11 Feb 2005 17:21:49
[org.apache.catalina.cluster.tcp.TcpReplicationThread[4]] ERROR
org.apache.catalina.cluster.session.SimpleTcpReplicationManager  -
Unable to receive message through TCP channel

java.lang.ClassCastException

        at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageR
eceived(SimpleTcpReplicationManager.java:530)

        at
org.apache.catalina.cluster.session.SimpleTcpReplicationManager.messageD
ataReceived(SimpleTcpReplicationManager.java:596)

        at
org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(Sim
pleTcpCluster.java:580)

        at
org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:70
)

        at
org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpRep
licationThread.java:129)

        at
org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationT
hread.java:67)





How come a clustered application would have sessions of type
org.apache.catalina.session.StandardSession? Does anyone have any ideas?



Regards,

Vlad




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