Hello Evaristo,
What kind of h/w load balancer are you using. I am not sure it provides
stickiness - requests to the same http session should be
directed/forwarded to the same backend cluster member.
I would suggest you try using the s/w Load Balancer support available
with GlassFish V2. This provides (apart from other features) stickiness
of http requests serviced by the application cluster.
There is a draft available on setting up the HTTP Load Balancer, which
is open for review, at the following location -
https://glassfish.dev.java.net/javaee5/docs/DocsIndex.html#Documentation_Drafts.
Checkout the "High Availability Administration Guide" chapter
"Configuring Web Servers for Load Balancing".
regards
Pankaj
Evaristo José Camarero wrote:
> Hi:
>
> We are in the process to migrate a cluster JEE
> application from Tomcat 5.5.x to Glassfish.
>
> Tomcat 5.5.x uses and all-to-all (problems to scale,
> by the way) in memory session replication strategy
> that allows that all the cluster members have a copy
> on the HttpSession. Taken that into account we have
> configured the Hardware Load Balancer in a round robin
> way
>
> Our intention is to employ Glassfish memory
> replication for clustering HttpSession’s. Glassfish
> does not make a copy of the session in all cluster
> nodes, so what is the optimum configuration for the
> Load Balancer. Is it better to configure it to allow
> that all the requests in a single session should be
> managed by the same cluster member? Do you have any
> additional advice regarding this issue?
>
> Thanks in advance,
>
> Evaristo
>
>
>
>
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