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On 01/24/2018 07:20 PM, Hoggins! wrote:
Hello,
The subject says it all. I have a replica 3 cluster :
gluster> volume info thedude
Volume Name: thedude
Type: Replicate
Volume ID: bc68dfd3-94e2-4126-b04d-77b51ec6f27e
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 3 = 3
Transport-type: tcp
Bricks:
Brick1: ngluster-1.network.hoggins.fr:/export/brick/thedude
Brick2: ngluster-2.network.hoggins.fr:/export/brick/thedude
Brick3: ngluster-3.network.hoggins.fr:/export/brick/thedude
Options Reconfigured:
cluster.server-quorum-type: server
transport.address-family: inet
nfs.disable: on
performance.readdir-ahead: on
client.event-threads: 8
server.event-threads: 15
... and I would like to replace, say ngluster-2 with an arbiter-only
node, without any data. Is that possible ? How ?
Yes, you would need to reduce it to replica 2 and then convert
it to arbiter.
1. Ensure there are no pending heals, i.e. heal info shows zero
entries.
2. gluster volume remove-brick thedude replica 2
ngluster-3.network.hoggins.fr:/export/brick/thedude force
3. gluster volume add-brick thedude replica 3 arbiter 1
<IP:brick path of the new arbiter brick>
HTH,
Ravi
Thanks !
Hoggins!
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