We perform regular monthly server updates, occasionally more as needed. If we had ticket replication (which Memcached itself doesn't support) we could do these updates during regular working hours and users wouldn't notice.
Doing maintenance off hours is an option, and how we do it for services which don't have high availability. Users needing to re-authenticate is acceptable in the event of a server failure as long as CAS remained online, but we would not perform regular maintenance during on hours if it may event in some users being forced to re-reauthenticate. On Tuesday, April 10, 2018 at 11:51:18 AM UTC-4, rbon wrote: > > Teddy, > > I have not used memcached. To accomplish your goal you would need a > replicated cache. > How often do you plan to restart your servers? Will your users to notice? > > Ray > > On Tue, 2018-04-10 at 08:07 -0700, Teddy Brown wrote: > > Is it possible to get High Availability with the memcache ticket > registry? > > I only have these attributes configured currently and it works. > > However it seems if the Memcached instance on either host is restarted (or > the host is restarted) that CAS continues to function as expected, any > tickets on the restarted host need to re-authenticate. > cas.ticket.registry.memcached.servers=cas01:11211,cas02:11211 > cas.monitor.memcached.failureMode=Redistribute > > Is it possible to configure this in a way that a restart of either > Memcached service will not result in the loss of any CAS tickets? > > Thanks > > -- > Ray Bon > Programmer analyst > Development Services, University Systems > 2507218831 | CLE 019 | rb...@uvic.ca <javascript:> > > -- - Website: https://apereo.github.io/cas - Gitter Chatroom: https://gitter.im/apereo/cas - List Guidelines: https://goo.gl/1VRrw7 - Contributions: https://goo.gl/mh7qDG --- You received this message because you are subscribed to the Google Groups "CAS Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to cas-user+unsubscr...@apereo.org. To view this discussion on the web visit https://groups.google.com/a/apereo.org/d/msgid/cas-user/e8d3f8ae-9f30-4642-af14-13461c172839%40apereo.org.
