Hello Pankaj:
The HW Load Balancer it is F5 Big IP. It has worked
fine until now for us, so I guess we will mantain. It
provides sticky connections, so I guess that I could
configure in the right way. In fact, I have found this
blog, that provides a possible configuration
http://blogs.sun.com/sv96363/entry/setting_up_big_ip_v4
Thanks for you answer.
Regards,
Evaristo
--- Pankaj Jairath <Pankaj.Jairath_at_Sun.COM> escribió:
> 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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