The last brick(s) in a replica set will be the arbiter brick(s).
https://docs.gluster.org/en/latest/Administrator%20Guide/arbiter-volumes-and-quorum/
---
For example:
# gluster volume create testvol replica 2 arbiter 1
server{1..6}:/bricks/brick
volume create: testvol: success: please start the volume to access data
This means that for every 3 bricks listed, 1 of them is an arbiter. We
have created 6 bricks. With a replica count of three, each 3rd brick in
the series will be a replica subvolume. Since we have two sets of 3,
this created a distribute subvolume made of up two replica subvolumes.
---
Am 21.10.2020 um 13:41 schrieb Gilberto Nunes:
>> I would use the thord system as an arbiter which stores only
metadata of the file , but no data.
Yep! But it's not clear to me how gluster will pick up the third node to
be an arbiter...
Is there any parameter to pass during volume creation or just replica 1
and than gluster will analyze the hosts and then pick up the less powerful?
Sorry for newbie question...
Thanks
---
Gilberto Nunes Ferreira
Em qua., 21 de out. de 2020 às 07:31, Strahil Nikolov
<hunter86_bg@xxxxxxxxx <mailto:hunter86_bg@xxxxxxxxx>> escreveu:
I would use the thord system as an arbiter which stores only
metadata of the file , but no data.
For such systems , SSDs are most optimal.
Best Regards,
Strahil Nikolov
В вторник, 20 октомври 2020 г., 16:53:59 Гринуич+3, Gilberto Nunes
<gilberto.nunes32@xxxxxxxxx <mailto:gilberto.nunes32@xxxxxxxxx>>
написа:
Hi
I have 3 servers but the third one is a very low machine compared to
the 2 others servers.
How could I create a replica 3 in order to prevent split-brain, but
tell the gluster to not use the third node too much???
I hope I can make myself understandable.
Thanks
---
Gilberto Nunes Ferreira
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