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Chris,

On 4/16/15 9:59 AM, Christoph Prybila wrote:
> Tomcat:     7.0.59 OS:         Win7 Professional SP1 Java:
> 1.7.0_67
> 
> I want to create a cluster and I need to use static membership. But
> the number of nodes in my cluster is not static.
> 
> Is it possible to add members to such a static membership cluster 
> without restarting the other already running tomcat instances?
> 
> I figured that in order to add a new member I would need to specify
> it in the StaticMembershipInterceptor of all the other nodes. But
> editing the server.xml of a running tomcat instance had no effect.

Tomcat will not auto-reload server.xml; there are just too many moving
parts to reload it quickly, so you have to bounce the whole server.

Oddly enough, I was just talking to someone yesterday about how static
membership ought to be updatable via at least JMX. I'm not sure, but
it's possible that static membership is /already updatable via JMX.

Are you comfortable connecting to a local Tomcat using jconsole or
VisualVM and browsing around the "Catalina" tree? I don't have a
clustered setup handy to inspect myself to see if it's already possible.

If it's /not/ currently possible, it really should be.

- -chris
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