> 3. Could you please point me to any link that has steps to set up repcache?

I would give some careful consideration to whether you need
replication in memcached.  Consider what happens when a node goes
down:  a user hits CAS and MemcachedTicketRegistry figures out which
nodes the cache entry lives on and sends it there, only to find that
the node is down.  IIRC it fails gracefully and simply returns null
for the cache entry.  In that case the user would be treated at
unauthenticated by CAS and simply be required to log in again.  That
seems like a pretty friendly failure mode with memcached in its
default behavior without repcached.

M

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