On Feb 13, 2016, at 6:21 PM, Ravishankar N <[email protected]> wrote: > Like Bishoy said in another thread, quorum does not really make sense in > 2-replica because there is no notion of majority.
Ah, could you update the doc to note that a quorum isn’t formed from all the members of the cluster, but rather from the replicas and arbiters involved in the specific operation? In a 10x3 cluster, it would be formed from just 3 nodes, not 30. I expected that in a 10 (5x2) server setup, 6 means majority. Any island of 5 or less, would not be a majority. Any island of 6 or more, would form a majority. The doc isn’t clear on the point that in a 5x2 setup, the software won’t take a majority of all the cluster members. I had assumed that all the cluster members would help form a quorum for the entire cluster. Additionally, can you say that a replica 2 doesn’t help build an HA cluster. One must have a replica 3, or an arbiter volume. This let’s a person who specifically wants HA to avoid the mistake of replica 2. Thanks. _______________________________________________ Gluster-users mailing list [email protected] http://www.gluster.org/mailman/listinfo/gluster-users
