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From Willem Fibbe - Realworks BV <wil...@realworks.nl>
Subject Re: Tomcat session replication with static membership
Date Thu, 05 Sep 2013 14:30:58 GMT
To answer my own questions:

On 04/09/2013 14:18, Willem Fibbe wrote:
> ...
> Now I was wondering 2 things:
> - if a Tomcat node restarts, will it be possible that it is trying to receive sessions
from itself, rather than one or more of the other nodes? Or: should I configure a different
server.xml on each node (its own member left out)?

I have setup a small cluster-group for testing (just quick testing) and have seen a Tomcat
node starting up,
replicating sessions from its own. Therefore, all our nodes now have a different server.xml
where its own node is
removed.

> - if I start Tomcat, I see in catalina.out:
> 		"WARNING: [SetPropertiesRule]{Server/Service/Engine/Cluster/Channel/Interceptor/Member}
Setting property 'uniqueId' to '{10,0,10,227}' did not find a matching property."
> 	-> I removed uniqueId-attribute, but will this cause any possible problems?

So far, we have't seen any problems, although in catalina.out I see each server with the same
id:

	INFO: Replication member added:org.apache.catalina.tribes.membership.MemberImpl[tcp://hostname01.domain.nl:5678,hostname01.domain.nl,5678,
alive=0,id={0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 }, payload={}, command={}, domain={112 117 98
108 105 115 104 45 99 ...(15)}, ]
	INFO: Replication member added:org.apache.catalina.tribes.membership.MemberImpl[tcp://hostname02.domain.nl:5678,hostname02.domain.nl,5678,
alive=0,id={0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 }, payload={}, command={}, domain={112 117 98
108 105 115 104 45 99 ...(15)}, ]

Sessions seem te be replicating just fine though.

Willem

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