[Gluster-users] GlusterFS as virtual machine storage

[Gionatan Danti]

Il 23-08-2017 18:51 Gionatan Danti ha scritto:
> Il 23-08-2017 18:14 Pavel Szalbot ha scritto:
>> Hi, after many VM crashes during upgrades of Gluster, losing network
>> connectivity on one node etc. I would advise running replica 2 with
>> arbiter.
> 
> Hi Pavel, this is bad news :(
> So, in your case at least, Gluster was not stable? Something as simple
> as an update would let it crash?
> 
>> I once even managed to break this setup (with arbiter) due to network
>> partitioning - one data node never healed and I had to restore from
>> backups (it was easier and kind of non-production). Be extremely
>> careful and plan for failure.
> 
> I would use VM locking via sanlock or virtlock, so a split brain
> should not cause simultaneous changes on both replicas. I am more
> concerned about volume heal time: what will happen if the standby node
> crashes/reboots? Will *all* data be re-synced from the master, or only
> changed bit will be re-synced? As stated above, I would like to avoid
> using sharding...
> 
> Thanks.

Hi all,
any other advice from who use (or do not use) Gluster as a replicated VM 
backend?

Thanks.

-- 
Danti Gionatan
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