Manually force Shibboleth SP to expire/invalidate all sessions

[Peter Schober]

* Tom Noonan <tom at joinroot.com> [2018-02-21 17:23]:
> I'm not using memcached.  I think there is some confusion with another
> thread.

Indeed, apologies. I was referring to a hijacked thread that at one
point changed its subject to "Shibboleth SP clustering using shared
database", where someone wanted to cluster Apache httpd with Shib as a
reverse proxy to another resource.
That latter part is what caused me to chase you down a road you had no
intention of going.
-peter