it comes down to multicasting working properly on your system.
that is where your troubleshooting efforts need to go. Sometimes
removing mcastBindAddr helps.
Filip
Vinu Varghese wrote:
Hi,
I have a clustered environment which have 4 machines that are in
the same private switch. I have configured the clustering element of
server.xml as shown below :
|<Cluster
className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
clusterLogName="clusterlog" doClusterLog="true"
manager.className="org.apache.catalina.cluster.session.DeltaManager"
manager.expireSessionsOnShutdown="false"
manager.notifyListenersOnReplication="false"
manager.notifySessionListenersOnReplication="false"
manager.sendAllSessions="false" manager.sendAllSessionsSize="500"
manager.sendAllSessionsWaitTime="20">
<Membership
className="org.apache.catalina.cluster.mcast.McastService"
mcastAddr="228.0.0.4" mcastBindAddr="192.168.0.10"
mcastClusterDomain="TreeCache-Cluster" mcastDropTime="30000"
mcastFrequency="200" mcastPort="45564" />
<Receiver
className="org.apache.catalina.cluster.tcp.ReplicationListener"
tcpListenAddress="192.168.0.10" tcpListenPort="4010"
tcpSelectorTimeout="100" tcpThreadCount="6" />
<Sender ackTimeout="15000"
className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"
doProcessingStats="true" doTransmitterProcessingStats="true"
doWaitAckStats="true" keepAliveMaxRequestCount="-1"
keepAliveTimeout="80000" queueCheckLock="true"
queueDoStats="true"
queueTimeWait="true" recoverCounter="6" recoverTimeout="500"
replicationMode="fastasyncqueue" waitForAck="true" />
<Valve
className="org.apache.catalina.cluster.tcp.ReplicationValve"
filter=".*\.gif;.*\.js;.*\.css;.*\.png;.*\.jpeg;.*\.jpg;.*\.html;.*\.txt;"
primaryIndicator="true" />
<Valve
className="org.apache.catalina.cluster.session.JvmRouteBinderValve"
enabled="true" />
<ClusterListener
className="org.apache.catalina.cluster.session.ClusterSessionListener"
/>
<ClusterListener
className="org.apache.catalina.cluster.session.JvmRouteSessionIDBinderListener"
/>
<Deployer
className="org.apache.catalina.cluster.deploy.FarmWarDeployer"
deployDir="${catalina.base}/war-deploy/"
tempDir="${catalina.base}/war-temp"
watchDir="${catalina.base}/war-listen/" watchEnabled="true" />
</Cluster>
|
Only two pair of machines get participated in clustering. The other
two will not respond to any messages or doesnt recognize the rest of
the members at all. I am running Tomcat 5.5.20 on FC5 and JDK 1.5. I
have my iptables shutdown and no other security options are enabled.
Also I have JBoss PojoCache running in my application. It is
configured on a different UDP address other than mcastAddress of
Tomcat Server.xml's Membership element. Can anyone lash some light on
this issue ?
Thanks in advance.
Regards
--Vinu Varghese
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