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keepalivelimits
2012 May 24
0
Is it possible to use quorum for CTDB to prevent split-brain and removing lockfile in the cluster file system
...network.
If node A is disconnected in the private network, there will be group (A)
and group (B,C,D) in our cluster.
The election of recovery master will be triggered after the disconnected
determination of CTDB, i.e. the CTDB elects a new recovery master for each
group after 26 (KeepaliveInterval*KeepaliveLimits+1 by default) seconds.
Then node A will be the recovery master of group (A) and some node (e.g. B)
will be the recovery master of group (B,C,D).
Now, A and B will try to lock the lockfile but GlusterFS also communicates
to each other via private network.
A big problem arises since the lockfile can...