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From Dhaval Jaiswal <dhaval.jais...@via.com>
Subject session replication issue
Date Mon, 09 Dec 2013 20:04:27 GMT
setting of session replication worked well. However, we do have threading
in some products. Like we are hitting the target API and getting response
from there servers. If will not get the response will hit them after some
time and in this case threading not handled by session replication because
of session timeout and shows below errors. After some time the server
starts getting
high load.


SEVERE: Unable to replicate backup key:
AE8095AB32A4DCA0AFD7117F6F32210C.t7 to
backup:org.apache.catalina.tribes.membership.MemberImpl[tcp://{-64, -88, 3,
12}:4001,{-64, -88, 3, 12},4001, alive=30639540,id={77 33 -17 95 -79 -80 79
2 -104 -102 -73 29 -100 39 -59 -111 }, payload={}, command={}, domain={},
]. Reason:Operation has timed out(60000 ms.).; Faulty members:tcp://{-64,
-88, 3, 12}:4001;
org.apache.catalina.tribes.ChannelException: Operation has timed out(60000
ms.).; Faulty members:tcp://{-64, -88, 3, 12}:4001;

How can i address above issue or just by increasing time out value. Please
explain me.





server.xml for session replicaiton.


   <Manager className="org.apache.catalina.ha.session.BackupManager"
expireSessionsOnShutdown="false"
                   notifyListenersOnReplication="true" mapSendOptions="6"/>
            <Channel
className="org.apache.catalina.tribes.group.GroupChannel">
             <Membership
className="org.apache.catalina.tribes.membership.McastService"
                        address="228.0.0.4"
                        port="45565"
                        frequency="500"
                        dropTime="30000"/>
             <Receiver
className="org.apache.catalina.tribes.transport.nio.NioReceiver"
                      address="auto"
                      port="5000"
                      selectorTimeout="5000"
                      timeout="60000"
                      maxThreads="6"/>
             <Sender
className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
                  <Transport
className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"
timeout="60000" keepAliveCount="0"/>
             </Sender>
             <Interceptor
className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
             <Interceptor
className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/>
              <Interceptor
className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/>

          </Channel>
         <Valve className="org.apache.catalina.ha.tcp.ReplicationValve"

filter=".*\.gif|.*\.js|.*\.jpeg|.*\.jpg|.*\.png|.*\.htm|.*\.html|.*\.css|.*\.txt"/>
         <Valve
className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
       <ClusterListener
className="org.apache.catalina.ha.session.ClusterSessionListener"/>
       <ClusterListener
className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>

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