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From Mark Thomas <>
Subject Re: Sticky session and ModJK Load Balancer
Date Mon, 06 Jul 2009 17:34:15 GMT
Emilio Recio wrote:
> Hi,
> i have installed Apache 2.2 and two Tomcat 6 whit load balancing in
> cluster mode using "mod_jk" module and setting sticky session in TRUE,
> and memory replication. I was testing my project and work perfect.
> We have a dilemma using sticky session or not using it, with my team work.
> Setting sticky-session in TRUE, it works fine, even when one tomcat
> fails-over. When set to FALSE i can see that the session have some data
> loss, and the project start to fail.
> I was reading the book Professional Apache Tomcat 6, goggle searches and
> all kind of information in the net. The recommendation is: use
> sticky-session in TRUE with memory replication.
> Nobody mention concrete arguments, and need that to make a report to the
> system administrator, to make him understand why we need to use
> sticky-session in TRUE.

I would have thought the occasional data loss you see is argument
enough. What more were you looking for?


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