Re: Tomcat 6 clustering

Filip Hanik - Dev Lists Thu, 29 May 2008 14:30:47 -0700

you'd need to define

<Context className="org.apache.catalina.ha.context.ReplicatedContext" ...



for each context that you want that to happen

Filip

gangadhar p wrote:

Hi guys, I am configuring Tomcat 6 clustering to have more than one instance
access to each others ServletContext attributes.  It's said that
ServletContext is clustered by default when Tomcat 6 is clustered, but my
servlets in 2 different instances are not able to access each others
ServletContext attributes. The Cluster elements added under the element Host
in two different server.xml files in two different instances are given
below.
In Tomcat Instance 1 :

                <Cluster 
className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"

managerClassName="org.apache.catalina.cluster.session.DeltaManager"

                 expireSessionsOnShutdown="false"
                 useDirtyFlag="true">

<MembershipclassName="org.apache.catalina.cluster.mcast.McastService"

                mcastAddr="228.0.0.4"
                mcastPort="45564"
                mcastFrequency="500"
                mcastDropTime="3000"/>

<ReceiverclassName="org.apache.catalina.cluster.tcp.ReplicationListener"

                tcpListenAddress="127.0.0.1"
                tcpListenPort="4001"
                tcpSelectorTimeout="100"
                tcpThreadCount="6"/>

            <Sender

className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"

                replicationMode="pooled"/>
            <Valve
className="org.apache.catalina.cluster.tcp.ReplicationValve"

filter=".*\.gif;.*\.js;.*\.jpg;.*\.htm;.*\.html;.*\.txt;"/><ClusterListener

className="org.apache.catalina.cluster.session.ClusterSessionListener"/>

        </Cluster>


In Tomcat Instance 2:

                <Cluster 
className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"