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From GOMEZ Henri <hgo...@slib.fr>
Subject RE: Tomcat 4.0 cluster-mode
Date Fri, 28 Sep 2001 21:52:27 GMT
><Cluster className="org.apache.catalina.cluster.StandardCluster"
>    multicastSocket="6789"
>    multicastAddress="228.5.6.7"
>    checkInterval="5"
>    clusterName="myCluster"
>    debug="99"/>
>
>There's experimental support for replicating sessions in the
>cluster, edit/uncomment your <Manager> and change the className
>to: org.apache.catalina.session.DistributedManager.
>
>It currently only replicates *new* sessions. It doesn't replicate
>any changes made to the objects associated with your session.
>
>I had some problems getting multicasting to work under Linux and
>according to Sun it was a Linux kernel issue rather than a JDK issue.
>I have now switched to openBSD and hopefully I'll be able to continue
>the work and commit some code for the clustering package again.
>
>There's also an issue with the cookies if you want the cluster to
>be able to "continue" a replicated session that origined on a other
>machine in the cluster. I think that mod_jk might solve this with
>some sort of rewrite if you run it in loadbalancing mode? Maybe
>Henri Gomez or someone could comment on this?

An interesting perspective and something I was thinking about that
but you'll have to use mod_jk with TC 4.0 :)

>If you want to try it out and maybe submit some code/patches that
>would be gladly appreciated.
>
>
>	Bip Thelin
>

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