Load balancing requirements for clustering CAS 3.0.x+

[Scott Battaglia]

The ticket cache is not application scope in terms of the scopes provided by
the servlet specification.

The TicketRegistry is a pluggable data store backend with the default being
an in-memory database but there are plenty of options including a JBoss
Cache-backed registry.

-Scott

On 8/7/07, Matt Sciulli <matts at astrology.com> wrote:
>
> Mike,
>
> How do you replicate the ticket cache? Isn't that an application scope
> object?
>
> Matt
>
>
> Mike Kennedy wrote, On 8/7/2007 9:32 AM:
> > At our site we have CAS clustering working with an F5 load balancer
> > using sticky sessions. However, if the load balancer detects that a node
> > fails it migrates those sessions to another node where the Tomcat
> > session and ticket cache have already been replicated.
> >
>
>
>
> > In other words, we use sticky sessions and have uninterrupted service
> > within the cluster.
> >
> > On Tue, 2007-08-07 at 11:05 -0500, Andrew R Feller wrote:
> >
> >> Q: Are there any load balancing requirements for clustering CAS 3
> >> server?
> >>
> >>
> >>
> >> While following the Clustering CAS walkthrough in the CAS wiki, I
> >> notice it didn't go in-depth about what options are available.  Aside
> >> from using sticky sessions to redirect the user back to the CAS server
> >> they were authenticated against, what other options are available?  I
> >> would prefer not to use sticky sessions as we want uninterrupted
> >> service within the cluster.
> >>
> >>
> >>
> >> Thanks,
> >>
> >>
> >>
> >> Andrew R Feller, Analyst
> >>
> >> Subversion Administrator
> >>
> >> University Information Systems
> >>
> >> Louisiana State University
> >>
> >> afelle1 at lsu.edu
> >>
> >> (office) 225.578.3737
> >>
> >>
> >>
> >>
> >> _______________________________________________
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> >> cas at tp.its.yale.edu
> >> http://tp.its.yale.edu/mailman/listinfo/cas
> >>
>
>
> --
> ================================================================
>
> Matt Sciulli
>
> Senior Software Developer, Astrology.com, iVillage Inc., an NBC Universal
> company
>
>
> http://www.astrology.com
>
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-- 
-Scott Battaglia

LinkedIn: http://www.linkedin.com/in/scottbattaglia
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