<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 5:25 PM, Kevin Lemonnier <span dir="ltr"><<a href="mailto:lemonnierk@ulrar.net" target="_blank">lemonnierk@ulrar.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
As stated in another thread, we currently have a 3 nodes cluster with sharding enabled used for storing VM disks.<br>
I am migrating that to a new 3.7.11 cluster to hopefully fix the problems with had friday, but since those 3<br>
nodes are nearly full we'd like to expand.<br>
<br>
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),<br>
or go to 6 nodes with still a replica 3 ? Seems like having 3 replicas is better for safety, but can someone confirm<br>
that whats important for quorum is the number of bricks in a replica set, not the number of nodes total ?<br>
Would hate to get into a split brain because we upgraded to an even number of node.<br></blockquote><div><br></div><div>You need to go for 3 more nodes with still a replica 3 to guard against split-brains.<br><br></div><div>-Krutika<br></div><div> <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Thanks,<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Kevin Lemonnier<br>
PGP Fingerprint : 89A5 2283 04A0 E6E9 0111<br>
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