Thanks, Scott.<div><br></div><div>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.</div>
<div><br></div><div>For now we are going to split up shibd services by web fleet, and circle back on a "real" LB solution later.</div><div><br></div><div>Thanks again,</div><div>JDS<br><br><div class="gmail_quote">
On Wed, Sep 12, 2012 at 2:21 PM, Cantor, Scott <span dir="ltr"><<a href="mailto:cantor.2@osu.edu" target="_blank">cantor.2@osu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On 9/12/12 2:14 PM, "Jeff Silverman" <<a href="mailto:jeff@moodlerooms.com">jeff@moodlerooms.com</a>> wrote:<br>
<br>
>We have a single SP server running with TCP Listener to be able to load<br>
>balance our web fleet without sticky sessions.<br>
<br>
</div>I can't imagine you'd get decent enough performance with it to do that if<br>
your load is high enough that you'd need to avoid sticky sessions. Have<br>
you looked at isolating the SP session so that it doesn't involve more<br>
than an initial page? That doesn't require anything but a very short term<br>
stick.<br>
<div class="im"><br>
>- We are trying to put a second SP in place to handle traffic for a<br>
>subset of VirtualHosts.<br>
<br>
</div>The physical software runs once per web server, that's all it can do.<br>
<div class="im"><br>
> I've tried overriding the SHIBSP_CONFIG env var and the ShibConfig<br>
>directive on a per-Vhost, and using SetEnv and SetEnvIf, but it does not<br>
>get overridden. It<br>
> appears mod_shib gets the first value it sees, and holds it globally,<br>
>and will not override it on a per-instance basis. Is there any way to<br>
>have 2 SPs running to handle traffic separately?<br>
<br>
</div>Not physically, no. The logical separation of resources into applications<br>
is the only separation it supports.<br>
<br>
-- Scott<br>
<br>
<br>
--<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div style="text-align:left">Jeffrey D. Silverman • Moodlerooms, Inc.</div><div style="text-align:left"><a href="mailto:jeff@moodlerooms.com" target="_blank">jeff@moodlerooms.com</a></div>
<br>
</div>