no all operating systems support a bind address for multicast sockets

socket = new MulticastSocket(new InetSocketAddress(address,port));

Filip

sudhakar p wrote:
Hi

I am trying to configure Clustering/Session Replication in Tomcat 6.0.18 and
am getting this message when I start the tomcat 6.0.18  server.

*INFO  org.apache.catalina.tribes.membership.McastService - Binding to
multicast address, failed. Binding to port only*

Tomact log:
2009-05-01 12:00:06,400 [main] INFO
org.apache.catalina.core.StandardService - Starting service Catalina
2009-05-01 12:00:06,401 [main] INFO  org.apache.catalina.core.StandardEngine
- Starting Servlet Engine: Apache Tomcat/6.0.18
2009-05-01 12:00:06,409 [main] INFO
org.apache.catalina.ha.tcp.SimpleTcpCluster - Cluster is about to start
2009-05-01 12:00:06,555 [main] INFO
org.apache.catalina.tribes.transport.ReceiverBase - Receiver Server Socket
bound to:/172.31.3.10:28512
2009-05-01 12:00:06,600 [main] INFO
org.apache.catalina.tribes.membership.McastService - Attempting to bind the
multicast socket to /228.0.0.4:18512
2009-05-01 12:00:06,763 [main] INFO
org.apache.catalina.tribes.membership.McastService - Binding to multicast
address, failed. Binding to port only.
2009-05-01 12:00:06,764 [main] INFO
org.apache.catalina.tribes.membership.McastService - Setting multihome
multicast interface to:/172.31.3.10
2009-05-01 12:00:06,765 [main] INFO
org.apache.catalina.tribes.membership.McastService - Setting cluster mcast
soTimeout to 500
2009-05-01 12:00:06,982 [main] INFO
org.apache.catalina.tribes.membership.McastService - Sleeping for 1000
milliseconds to establish cluster membership, start level:4
2009-05-01 12:00:08,033 [main] INFO
org.apache.catalina.tribes.membership.McastService - Done sleeping,
membership established, start level:4
2009-05-01 12:00:08,042 [main] INFO
org.apache.catalina.tribes.membership.McastService - Sleeping for 1000
milliseconds to establish cluster membership, start level:8
2009-05-01 12:00:09,044 [main] INFO
org.apache.catalina.tribes.membership.McastService - Done sleeping,
membership established, start level:8
2009-05-01 12:00:09,072 [main] INFO
org.apache.catalina.ha.session.JvmRouteBinderValve - JvmRouteBinderValve
started

Config:
<Membership className="org.apache.catalina.tribes.membership.McastService"
                                                address="230.0.0.10"
                                                port="18512"
                                                bind="172.31.3.12"
                                                domain="ramm.bftg.com"/>
                                        <Receiver
className="org.apache.catalina.tribes.transport.nio.NioReceiver"
                                                address="172.31.3.12"
                                                port="28512"
                                                timeout="100"/>

Can anybody help me pls ?

Thanks in Advance

Raju



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