Configuring the CTDB recovery lock: Difference between revisions

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(→‎CTDB configuration: Update for 4.9 (and 4.8))
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recovery lock = /clusterfs/.ctdb/reclock
recovery lock = /clusterfs/.ctdb/reclock


== Samba <= 4.8 ==
== Samba &le; 4.8 ==


The equivalent <code>ctdbd.conf</code> option is <code>CTDB_RECOVERY_LOCK</code>. For example:
The equivalent <code>ctdbd.conf</code> option is <code>CTDB_RECOVERY_LOCK</code>. For example:

Revision as of 05:53, 17 September 2018

Goal

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

Prerequisites

CTDB configuration

The recovery lock, configured via the recovery lock option in the cluster section, 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:

 [cluster]
   recovery lock = /clusterfs/.ctdb/reclock

Samba ≤ 4.8

The equivalent ctdbd.conf option is CTDB_RECOVERY_LOCK. For example:

 CTDB_RECOVERY_LOCK=/clusterfs/.ctdb/reclock