How to...WebDisp Clustering??

Hello All,
I've a Portal running on the MSCS Environment with one dialog instance. Now i need to configure the WebDispatcher for the load balancing b/w CI and DI.
And then it will be a common URL to launch the Portal.
My concern is what if the Host, Where WebDispatcher is installed, goes down. Is there a way to cluster the WebDisp??
Any Ideas
Vaib

SK,
I know the job of WebDisp. I think u have to look at the Q again and understand it.
I'm not asking to forward the request to different WebDisp. I'm trying to cluster the WebDisp, means if one server goes down then the other one should take over...
Any ideas now.
Vaib

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This week I've been working on getting clustering setup for a client. Initially we were using CF10 with the latest patches. Ideally we wanted non-sticky load balancing with session replication. We want really high availability with the option to reboot a server at any time and not have to wait for session draining or lose customers if a node goes down. Adam Cameron points out that there is an issue with CF10 and not having an option to turn on session replication Adam Cameron's CFML Blog: Problem with session replication with CF10 clustering. Trying various fixes I could not get the session to replicate we moved to CF11 which restores that issue. There is a bug open for CF10 with some weird responses but I never saw any sort of fix for this.
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<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8" channelStartOptions="3">
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Hope I am not hijacking your excellent post.
Some details to add for findings on AWS EC2 environment.
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al
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Aug 26, 2014 11:23:44 PM org.apache.catalina.ha.session.DeltaManager startIntern
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AllSessions
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peared
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mber[tcp://172.31.25.175:4002,172.31.25.175,4002, alive=0, securePort=-1, UDP Po
rt=-1, id={0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 }, payload={}, command={}, doma
in={100 101 108 116 97 45 115 116 97 ...(12)}, ]
Aug 26, 2014 11:23:06 PM org.apache.catalina.ha.tcp.SimpleTcpCluster memberAdded
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{100 101 108 116 97 45 115 116 97 ...(12)}, ]
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Regards, Carl.

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