Configuring the CTDB recovery lock: Difference between revisions
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(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...") |
(→CTDB configuration: Update for 4.9 (and 4.8)) |
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= CTDB configuration = |
= CTDB configuration = |
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The recovery lock, configured via <code> |
The recovery lock, configured via the <code>recovery lock</code> option in the <code>cluster</code> 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 [http://ctdb.samba.org/manpages/ctdb.7.html ctdb(7)] for more details. |
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For example: |
For example: |
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[cluster] |
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recovery lock = /clusterfs/.ctdb/reclock |
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== Samba <= 4.8 == |
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The equivalent <code>ctdbd.conf</code> option is <code>CTDB_RECOVERY_LOCK</code>. For example: |
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CTDB_RECOVERY_LOCK=/clusterfs/.ctdb/reclock |
CTDB_RECOVERY_LOCK=/clusterfs/.ctdb/reclock |
Revision as of 05:28, 17 September 2018
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 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