François Charlier 17684bd1e3 update the mysql/galera and haproxy timeouts
Update the database timeouts to higher values to prevent the services
from disconnecting too frequently:
- set the Galera HAProxy timeout to 90 minutes (with parameter)
- set the database_idle_timeout to 5000 seconds (83 minutes) to allow
the services to drop the connection before HAProxy does
- add `on-marked-down shutdown-sessions` to Galera HAProxy balancer
members to allow shutting down sessions when a Galera host goes down.

Change-Id: I62c70c906a009df43acaf172eb27729d5d257b0f
2015-04-10 15:45:55 +02:00
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