>> IIUC you're begging for split-brain ...
Not at all!
I have used this configuration and there isn't any split brain at all!
But if I do not use it, then I get a split brain.
Regarding count 2 I will see it!
Thanks
---
Gilberto Nunes Ferreira
Em ter., 27 de out. de 2020 às 09:37, Diego Zuccato <diego.zuccato@xxxxxxxx> escreveu:
Il 27/10/20 13:15, Gilberto Nunes ha scritto:
> I have applied this parameters to the 2-node gluster:
> gluster vol set VMS cluster.heal-timeout 10
> gluster volume heal VMS enable
> gluster vol set VMS cluster.quorum-reads false
> gluster vol set VMS cluster.quorum-count 1
Urgh!
IIUC you're begging for split-brain ...
I think you should leave quorum-count=2 for safe writes. If a node is
down, obviously the volume becomes readonly. But if you planned the
downtime you can reduce quorum-count just before shutting it down.
You'll have to bring it back to 2 before re-enabling the downed server,
then wait for heal to complete before being able to down the second server.
> Then I mount the gluster volume putting this line in the fstab file:
> In gluster01
> gluster01:VMS /vms glusterfs
> defaults,_netdev,x-systemd.automount,backupvolfile-server=gluster02 0 0
> In gluster02
> gluster02:VMS /vms glusterfs
> defaults,_netdev,x-systemd.automount,backupvolfile-server=gluster01 0 0
Isn't it preferrable to use the 'hostlist' syntax?
gluster01,gluster02:VMS /vms glusterfs defaults,_netdev 0 0
A / at the beginning is optional, but can be useful if you're trying to
use the diamond freespace collector (w/o the initial slash, it ignores
glusterfs mountpoints).
--
Diego Zuccato
DIFA - Dip. di Fisica e Astronomia
Servizi Informatici
Alma Mater Studiorum - Università di Bologna
V.le Berti-Pichat 6/2 - 40127 Bologna - Italy
tel.: +39 051 20 95786
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