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From Théo Chamley <>
Subject Re: FarmWarDeployer in a dynamically changing cluster
Date Sat, 10 Oct 2015 08:18:03 GMT

I can’t seem to find it in the documentation, but no, this is not the behaviour of the FarmWarDeployer.
This component is triggered only by adding or removing an app, not by adding or removing a
node in the cluster. It will not sync automatically the apps to your new node.
Two solutions:
* Make sure that your new node comes up with the apps already deployed.
* Once your new node has joined the cluster, redeploy the apps (a touch on the war file should
do it) cluster-wide.


> On 10 Oct 2015, at 01:48, Gintautas Sulskus <> wrote:
> Hi,
> suppose I have a Tomcat 8 cluster coordinated via multicast.
> If I understand it right, any newly started server will be picked up
> automatically and any down servers will eventually be dropped out from the
> cluster.
> I was wondering, how does FarmWarDeployer cope with this dynamics?
> Say I have two Tomcat 8 servers T1 and T2 running some apps. Then, a third
> server T3 joins the cluster. Does T3 get synced in terms of applications or
> do I have to deploy these apps myself?
> I believe I have read somewhere in Tomcat documentation that this is the
> case. It was very laconic though.
> Thanks!
> Best Wishes,
> Gin

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