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From "Mamta, Jain" <>
Subject RE: Clustering in tomcat
Date Tue, 21 Oct 2008 10:03:13 GMT
Pls check the tomcat documentation to enable Clustering. You need to
have enabled multicasting on your server first.

Best Regards,

-----Original Message-----
From: kashif_tomcat [] 
Sent: Tuesday, October 21, 2008 3:16 PM
Subject: Clustering in tomcat

can anyone help me for clustering in tomcat.

here is scenario:

two tomcat servers running on same linux machine on different ports with
apache installed on front side as web server and using mode proxy ajp
for integration with tomcat. now i uncommented following tag in
server.xml of tomcat conf to enable clustering. 

<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>

when i start tomcat server i get following exception:

INFO: Done sleeping, membership established, start level:4 Oct 21, 2008
3:04:38 PM org.apache.catalina.ha.tcp.SimpleTcpCluster start
SEVERE: Unable to start cluster.
Operation not permitted; No faulty members identified.

can anyone tell me what more should i do ? is there anything missing? 

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