CAS shared storage

[Josep Manel Andrés]

Hi guys,
I have set up a glusterFS shared storage on two nodes cluster,
pretending to get HA Active-Pasive. So I have shared /etc/cas and
/etc/tomcat , but I am not sure about sharing tomcat webapps directory
or instead deploying the CAS server on both nodes every time I do a
modification. What do you guys would recommend me to share across ?

Not caring about sharing the sessions, if a server goes offline, the
users will have to log in again.

Cheers!



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[Yaroslav Panych]

We do deploy into both nodes. Sharing CATALINA_BASE is really bad
idea(it contains internal tomcat state).

Moreover, my cas nodes are both active, behind balancing server. Out
cas update(once per month usually) procedure is simple: stop balancing
into node, stop node, update .war, start node, start balancing, repeat
with other nodes. No session loss so far(yes, we use couchbase cluster
as ticket registry storage).

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[Josep Manel Andrés]

I see....

So then I will do that.

Cheers!

--
Josep Manel Andrés (josep....@bsc.es)
Operations - Barcelona Supercomputing Center
C/ Jordi Girona, 31 http://www.bsc.es
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