Re: Recovery when 2 of 3 servers goes down!

[Gilberto Nunes <gilberto.nunes32@xxxxxxxxx>]

Yes Artem! That's it!

I used the following commands and everything works as expected with 3 nodes:

gluster volume create VMS proxmox01:/DATA/vms

gluster vol start VMS
gluster vol status VMS

gluster peer probe proxmox02
gluster volume add-brick VMS replica 2 proxmox02:/DATA/vms

gluster vol status VMS
gluster vol info VMS

gluster peer probe proxmox03
gluster volume add-brick VMS replica 3 proxmox03:/DATA/vms

gluster vol set VMS cluster.heal-timeout 60
gluster volume heal VMS enable
gluster vol set VMS cluster.quorum-reads false
gluster vol set VMS cluster.quorum-count 1

Thanks for you replay

Cheers

---

Gilberto Nunes Ferreira

Em sex., 17 de jul. de 2020 às 16:56, Artem Russakovskii <archon810@xxxxxxxxx> escreveu:

I had the same requirements (except with 4 servers and no arbiter), and this was the solution:

gluster v set VMS cluster.quorum-count 1

gluster v set VMS cluster.quorum-type fixed

Sincerely,
Artem

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Founder, Android Police, APK Mirror, Illogical Robot LLC

beerpla.net | @ArtemR

On Fri, Jul 17, 2020 at 6:50 AM Gilberto Nunes <gilberto.nunes32@xxxxxxxxx> wrote:

How there

I have 3 servers with gluster 7 installed and setting up with replica 3 and arbiter 1.

Here's the commands I used:

- First create a simple volume with one server:

gluster volume create VMS proxmox01:/DATA/vms

- Then add the second one
gluster peer probe proxmox02
gluster volume add-brick VMS replica 2 proxmox02:/DATA/vms
- And finally and the third:

gluster peer probe proxmox03

gluster volume add-brick VMS replica 3 arbiter 1 proxmox03:/DATA/vms

But then I decide to test the environment and bring proxmox02 and proxmox03 down and get Transport endpoint is not connected after a few seconds.

Is there a way to keep one server up if 2 goes down?

gluster vol info
 
Volume Name: VMS
Type: Replicate
Volume ID: 64735da4-8671-4c5e-b832-d15f5c03e9f0
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x (2 + 1) = 3
Transport-type: tcp
Bricks:
Brick1: proxmox01:/DATA/vms
Brick2: proxmox02:/DATA/vms
Brick3: proxmox03:/DATA/vms (arbiter)
Options Reconfigured:
nfs.disable: on
storage.fips-mode-rchecksum: on
transport.address-family: inet
performance.client-io-threads: off
cluster.self-heal-daemon: enable
cluster.quorum-reads: false
cluster.quorum-count: 1

gluster vol status
Status of volume: VMS
Gluster process                             TCP Port  RDMA Port  Online  Pid
------------------------------------------------------------------------------
Brick proxmox01:/DATA/vms                   49152     0          Y       1526  
Self-heal Daemon on localhost               N/A       N/A        Y       1537  
 
Task Status of Volume VMS
------------------------------------------------------------------------------
There are no active volume tasks

Thanks a lot

---

Gilberto Nunes Ferreira

(47) 3025-5907

(47) 99676-7530 - Whatsapp / Telegram

Skype: gilberto.nunes36

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