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From Mark Thomas <>
Subject Re: Inconsistent Horizontal Tomcat Cluster with Apache Load-Balancing (Windows)
Date Mon, 14 Sep 2009 16:39:11 GMT
Alexander Bacon wrote:
> Environment:
> Windows Server 2003
> Tomcat 6.0.20
> Apache HTTP Server 2.2.11
> JK 1.2.28 Connector
> The goal is to have horizontal clustering with load balancing and
> failover (with session persistence).
> The load balancing aspect works as expected. The issue I've been
> having is that when ServerA crashes, it will swap over to ServerB and
> the session will persist; however, if ServerB crashes, it will swap
> over to ServerA but lose the session. The configurations are identical
> except for the jvmRoutes.
> In the log files for ServerB:
> INFO: Manager [/test-app]: skipping state transfer. No members active
> in cluster group.
> I've been struggling with making this work over the past couple months
> with no luck. I've found several resources on the web, but they have a
> lot of conflicting information even when they say they are
> accomplishing the same end result. One of the suggestions I
> encountered was regarding the distributable tag, which I have ensured
> is in both configurations.

Mulitcast packets being dropped somewhere?


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