Hi Guys,
The Tomcat 6 documentation (
http://tomcat.apache.org/tomcat-6.0-doc/config/cluster.html) says that the
Context (ServletContext, right ?) attributes are replicated across cluster
members when the below element is added in either *
<tomcat-home>\conf\server.xml* or *<tomcat-home>\conf\context.xml* file.
*<Context className="org.apache.catalina.ha.context.ReplicatedContext"/>*
*But actually the ServletContext attributes are not replicated across all
other cluster members!!!*
The <Cluster> element in both server.xml files of my 2 Tomcat instances are
given below:
*1st Instance (<Cluster> element)*
* <Cluster className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
managerClassName="org.apache.catalina.cluster.session.DeltaManager"
expireSessionsOnShutdown="false"
useDirtyFlag="true">*
* <Membership
className="org.apache.catalina.cluster.mcast.McastService"
mcastAddr="228.0.0.4"
mcastPort="45564"
mcastFrequency="500"
mcastDropTime="3000"/>*
* <Receiver
className="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>*
* <Context path=""
docBase="G:\RealNetworks\apache-tomcat-6.0.16\webapps\ROOT"
crossContext="true" debug="0" reloadable="true" privileged="true"/>*
*2nd instance (<Cluster> element): *
* <Cluster className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
managerClassName="org.apache.catalina.cluster.session.DeltaManager"
expireSessionsOnShutdown="false"
useDirtyFlag="true">*
* <Membership
className="org.apache.catalina.cluster.mcast.McastService"
mcastAddr="228.0.0.4"
mcastPort="45564"
mcastFrequency="500"
mcastDropTime="3000"/>*
* <Receiver
className="org.apache.catalina.cluster.tcp.ReplicationListener"
tcpListenAddress="127.0.0.1"
tcpListenPort="4002"
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>*
* <Context path=""
docBase="G:\RealNetworks\Tomcat2\apache-tomcat-6.0.16\webapps\ROOT"
crossContext="true" debug="0" reloadable="true" privileged="true"/>*
And the below element is added in the *context.xml *:
*<Context className="org.apache.catalina.ha.context.ReplicatedContext">*
But the ServletContext attributes are not replicated across other cluster
members.
Any modifications are required? Very Urgent!
Any suggestions would be highly appreciated.
Thanks in advance.
