*I have two tomcats (tomcat 6)** setup on two separate machines. I have a
hardware load balancer with scheduling method configured to round robin.*
**
*each tomcat recognizes the other one by saying replication member added *
**
*I also made the "examples" web application (that comes with tomcat) a
cluster aware application. For this "examples" application, session
replication and everything works fine. This is how the log shows for this
application.*
2008-11-14 16:15:41.582 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Register manager /examples to
cluster element Engine with name Catalina
2008-11-14 16:15:41.582 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Register manager /examples to
cluster element Engine with name Catalina
2008-11-14 16:15:41.582 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Starting clustering manager at
/examples
2008-11-14 16:15:41.582 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Starting clustering manager at
/examples
2008-11-14 16:15:41.582 [main] [WARN]
org.apache.catalina.ha.session.DeltaManager - Manager [localhost#/examples],
requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64, -88, -46,
11}:4000,{-64, -88, -46, 11},4000, alive=159203,id={-68 -112 77 -71 -86 -30
77 94 -65 -9 108 56 48 -127 -101 -125 }, payload={}, command={}, domain={},
]. This operation will timeout if no session state has been received within
60 seconds.
2008-11-14 16:15:41.582 [main] [WARN]
org.apache.catalina.ha.session.DeltaManager - Manager [localhost#/examples],
requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64, -88, -46,
11}:4000,{-64, -88, -46, 11},4000, alive=159203,id={-68 -112 77 -71 -86 -30
77 94 -65 -9 108 56 48 -127 -101 -125 }, payload={}, command={}, domain={},
]. This operation will timeout if no session state has been received within
60 seconds.
2008-11-14 16:15:41.691 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Manager [localhost#/examples];
session state send at 11/14/08 4:15 PM received in 109 ms.
2008-11-14 16:15:41.691 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Manager [localhost#/examples];
session state send at 11/14/08 4:15 PM received in 109 ms.
2008-11-14 16:15:41.691 [main] [INFO]
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/examples] -
ContextListener: contextInitialized()
2008-11-14 16:15:41.691 [main] [INFO]
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/examples] -
SessionListener: contextInitialized()
*Now, I wanted to try my own application. For my own application... I want
it to be a default application for the server, so I put it in webappps/ea
directory and configured the context path as below in server.xml*
<Context path=""
docBase="ea"
className="org.apache.catalina.core.StandardContext"
cachingAllowed="true" ...................
*Session replication is not working for this application and the log says*
2008-11-14 16:15:43.581 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Register manager /ea to
cluster element Engine with name Catalina
2008-11-14 16:15:43.581 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Register manager /ea to
cluster element Engine with name Catalina
2008-11-14 16:15:43.581 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Starting clustering manager at
/ea
2008-11-14 16:15:43.581 [main] [INFO]
org.apache.catalina.ha.session.DeltaManager - Starting clustering manager at
/ea
2008-11-14 16:15:43.581 [main] [WARN]
org.apache.catalina.ha.session.DeltaManager - Manager [localhost#/wa],
requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64, -88, -46,
11}:4000,{-64, -88, -46, 11},4000, alive=161203,id={-68 -112 77 -71 -86 -30
77 94 -65 -9 108 56 48 -127 -101 -125 }, payload={}, command={}, domain={},
]. This operation will timeout if no session state has been received within
60 seconds.
2008-11-14 16:15:43.581 [main] [WARN]
org.apache.catalina.ha.session.DeltaManager - Manager [localhost#/ea],
requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64, -88, -46,
11}:4000,{-64, -88, -46, 11},4000, alive=161203,id={-68 -112 77 -71 -86 -30
77 94 -65 -9 108 56 48 -127 -101 -125 }, payload={}, command={}, domain={},
]. This operation will timeout if no session state has been received within
60 seconds.
2008-11-14 16:16:43.622 [main] [ERROR]
org.apache.catalina.ha.session.DeltaManager - Manager [localhost#/ea]: No
session state send at 11/14/08 4:15 PM received, timing out after 60,041 ms.
2008-11-14 16:16:43.622 [main] [ERROR]
org.apache.catalina.ha.session.DeltaManager - Manager [localhost#/ea]: No
session state send at 11/14/08 4:15 PM received, timing out after 60,041 ms.
*in the other cluster member it says*
2008-11-14 16:15:44.218 [pool-2-thread-1] [WARN]
org.apache.catalina.ha.ClusterListener - Context manager doesn't
exist:localhost#/ea
2008-11-14 16:15:44.218 [pool-2-thread-1] [WARN]
org.apache.catalina.ha.ClusterListener - Context manager doesn't
exist:localhost#/ea
**
*The problem here, I guess, is that the correct context path is localhost#/
not localhost#/ea because this is the default web app for the server... So,
Somehow I need to tell tomcat to look at localhost#/ instead of
localhost#/ea....*
**
*Any help is very much appreciated...*
**
*Thanks in advance*
*rohit*
**
