[Gluster-users] GlusterFS as virtual machine storage

WK wkmail at bneit.com
Sat Sep 9 01:27:40 UTC 2017

I've always wondered what the scenario for these situations are (aside 
from the doc description of nodes coming up and down).

Aren't Gluster writes atomic for all nodes?  I seem to recall Jeff Darcy 
stating that years ago.

So a clean shutdown for maintenance shouldn't be a problem at all. If a 
node didn't get a write, it is the one likely to fail.

So are we really only talking about a crash with data on the fly.

I suppose a crash during the heal phase after a shutdown could trigger 
this issue, especially if you are not using sharding and had huge VM files.

On 9/7/2017 11:06 AM, Pavel Szalbot wrote:
> Hi Neil, docs mention two live nodes of replica 3 blaming each other 
> and refusing to do IO.
> https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Split%20brain%20and%20ways%20to%20deal%20with%20it/#1-replica-3-volume

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