On Tue, Apr 19, 2016 at 5:25 PM, Kevin Lemonnier <lemonnierk@xxxxxxxxx> wrote:
Hi,
As stated in another thread, we currently have a 3 nodes cluster with sharding enabled used for storing VM disks.
I am migrating that to a new 3.7.11 cluster to hopefully fix the problems with had friday, but since those 3
nodes are nearly full we'd like to expand.
We have 3 nodes with a replica 3. What would be better, go to 5 nodes and use a replica 2 (so "wasting" one node),
or go to 6 nodes with still a replica 3 ? Seems like having 3 replicas is better for safety, but can someone confirm
that whats important for quorum is the number of bricks in a replica set, not the number of nodes total ?
Would hate to get into a split brain because we upgraded to an even number of node.
You need to go for 3 more nodes with still a replica 3 to guard against split-brains.
-Krutika
Thanks,
--
Kevin Lemonnier
PGP Fingerprint : 89A5 2283 04A0 E6E9 0111
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