Configuring the CTDB recovery lock

Revision as of 05:52, 29 January 2017 by MartinSchwenke (talk | contribs) (Created page with "= Goal = Configure CTDB to use a recovery lock to avoid a "split-brain" situation. = Prerequisites = * Setting up a cluster filesystem (by default - see below) = CTDB...")
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Goal

Configure CTDB to use a recovery lock to avoid a "split-brain" situation.

Prerequisites

CTDB configuration

The recovery lock, configured via CTDB_RECOVERY_LOCK provides important split-brain prevention and is usually configured to point to a lock file in the cluster filesystem. See the RECOVERY LOCK section in ctdb(7) for more details.

For example:

 CTDB_RECOVERY_LOCK=/clusterfs/.ctdb/reclock