Apache environment variable to point to shibboleth2.xml in different location based on Host

[Jeff Silverman]

Thanks, Scott.

We've considered a number of possibilities, but have generally decided
against any stickiness after a period this spring where we tested
stickiness and found decreased overall app performance. So we are gunshy to
try any stickiness.

For now we are going to split up shibd services by web fleet, and circle
back on a "real" LB solution later.

Thanks again,
JDS

On Wed, Sep 12, 2012 at 2:21 PM, Cantor, Scott <cantor.2 at osu.edu> wrote:

> On 9/12/12 2:14 PM, "Jeff Silverman" <jeff at moodlerooms.com> wrote:
>
> >We have a single SP server running with TCP Listener to be able to load
> >balance our web fleet without sticky sessions.
>
> I can't imagine you'd get decent enough performance with it to do that if
> your load is high enough that you'd need to avoid sticky sessions. Have
> you looked at isolating the SP session so that it doesn't involve more
> than an initial page? That doesn't require anything but a very short term
> stick.
>
> >- We are trying to put a second SP in place to handle traffic for a
> >subset of VirtualHosts.
>
> The physical software runs once per web server, that's all it can do.
>
> > I've tried overriding the SHIBSP_CONFIG env var and the ShibConfig
> >directive on a per-Vhost, and using SetEnv and SetEnvIf, but it does not
> >get overridden. It
> > appears mod_shib gets the first value it sees, and holds it globally,
> >and will not override it on a per-instance basis. Is there any way to
> >have 2 SPs running to handle traffic separately?
>
> Not physically, no. The logical separation of resources into applications
> is the only separation it supports.
>
> -- Scott
>
>
> --
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>



-- 
Jeffrey D. Silverman • Moodlerooms, Inc.
jeff at moodlerooms.com
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