[Gluster-users] Two VMS as arbiter...

[Strahil Nikolov]

This could happen if you have pending heals. Did you reboot that node recently ?
Did you set automatic unsplit-brain ?

Check for pending heals and files in splitbrain.

If not, you can check https://docs.gluster.org/en/latest/Troubleshooting/resolving-splitbrain/ (look at point 5).

Best Regards,
Strahil Nikolov

На 5 август 2020 г. 23:41:57 GMT+03:00, Gilberto Nunes <gilberto.nunes32 at gmail.com> написа:
>I'm in trouble here.
>When I shutdown the pve01 server, the shared folder over glusterfs is
>EMPTY!
>It's supposed to be a qcow2 file inside it.
>The content is show right, just after I power on pve01 backup...
>
>Some advice?
>
>
>Thanks
>
>---
>Gilberto Nunes Ferreira
>
>(47) 3025-5907
>(47) 99676-7530 - Whatsapp / Telegram
>
>Skype: gilberto.nunes36
>
>
>
>
>
>Em qua., 5 de ago. de 2020 às 11:07, Gilberto Nunes <
>gilberto.nunes32 at gmail.com> escreveu:
>
>> Well...
>> I do the follow:
>>
>> gluster vol create VMS replica 3 arbiter 1 pve01:/DATA/brick1
>> pve02:/DATA/brick1.5 pve01:/DATA/arbiter1.5 pve02:/DATA/brick2 pv
>> e01:/DATA/brick2.5 pve02:/DATA/arbiter2.5 force
>>
>> And now I have:
>> gluster vol info
>>
>> Volume Name: VMS
>> Type: Distributed-Replicate
>> Volume ID: 1bd712f5-ccb9-4322-8275-abe363d1ffdd
>> Status: Started
>> Snapshot Count: 0
>> Number of Bricks: 2 x (2 + 1) = 6
>> Transport-type: tcp
>> Bricks:
>> Brick1: pve01:/DATA/brick1
>> Brick2: pve02:/DATA/brick1.5
>> Brick3: pve01:/DATA/arbiter1.5 (arbiter)
>> Brick4: pve02:/DATA/brick2
>> Brick5: pve01:/DATA/brick2.5
>> Brick6: pve02:/DATA/arbiter2.5 (arbiter)
>> Options Reconfigured:
>> cluster.quorum-count: 1
>> cluster.quorum-reads: false
>> cluster.self-heal-daemon: enable
>> cluster.heal-timeout: 10
>> storage.fips-mode-rchecksum: on
>> transport.address-family: inet
>> nfs.disable: on
>> performance.client-io-threads: off
>>
>> This values I have put it myself, in order to see if could improve
>the
>> time to make the volume available, when pve01 goes down with ifupdown
>> cluster.quorum-count: 1
>> cluster.quorum-reads: false
>> cluster.self-heal-daemon: enable
>> cluster.heal-timeout: 10
>>
>> Nevertheless, it took more than 1 minutes to the volume VMS available
>in
>> the other host (pve02).
>> Is there any trick to reduce this time ?
>>
>> Thanks
>>
>> ---
>> Gilberto Nunes Ferreira
>>
>>
>>
>>
>>
>>
>> Em qua., 5 de ago. de 2020 às 08:57, Gilberto Nunes <
>> gilberto.nunes32 at gmail.com> escreveu:
>>
>>> hum I see... like this:
>>> [image: image.png]
>>> ---
>>> Gilberto Nunes Ferreira
>>>
>>> (47) 3025-5907
>>> (47) 99676-7530 - Whatsapp / Telegram
>>>
>>> Skype: gilberto.nunes36
>>>
>>>
>>>
>>>
>>>
>>> Em qua., 5 de ago. de 2020 às 02:14, Computerisms Corporation <
>>> bob at computerisms.ca> escreveu:
>>>
>>>> check the example of the chained configuration on this page:
>>>>
>>>>
>>>>
>https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.3/html/administration_guide/creating_arbitrated_replicated_volumes
>>>>
>>>> and apply it to two servers...
>>>>
>>>> On 2020-08-04 8:25 p.m., Gilberto Nunes wrote:
>>>> > Hi Bob!
>>>> >
>>>> > Could you, please, send me more detail about this configuration?
>>>> > I will appreciate that!
>>>> >
>>>> > Thank you
>>>> > ---
>>>> > Gilberto Nunes Ferreira
>>>> >
>>>> > (47) 3025-5907
>>>> > **
>>>> > (47) 99676-7530 - Whatsapp / Telegram
>>>> >
>>>> > Skype: gilberto.nunes36
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > Em ter., 4 de ago. de 2020 às 23:47, Computerisms Corporation
>>>> > <bob at computerisms.ca <mailto:bob at computerisms.ca>> escreveu:
>>>> >
>>>> >     Hi Gilberto,
>>>> >
>>>> >     My understanding is there can only be one arbiter per
>replicated
>>>> >     set.  I
>>>> >     don't have a lot of practice with gluster, so this could be
>bad
>>>> advice,
>>>> >     but the way I dealt with it on my two servers was to use 6
>bricks
>>>> as
>>>> >     distributed-replicated (this is also relatively easy to
>migrate to
>>>> 3
>>>> >     servers if that happens for you in the future):
>>>> >
>>>> >     Server1     Server2
>>>> >     brick1      brick1.5
>>>> >     arbiter1.5  brick2
>>>> >     brick2.5    arbiter2.5
>>>> >
>>>> >     On 2020-08-04 7:00 p.m., Gilberto Nunes wrote:
>>>> >      > Hi there.
>>>> >      > I have two physical servers deployed as replica 2 and,
>>>> obviously,
>>>> >     I got
>>>> >      > a split-brain.
>>>> >      > So I am thinking in use two virtual machines,each one in
>>>> physical
>>>> >      > servers....
>>>> >      > Then this two VMS act as a artiber of gluster set....
>>>> >      >
>>>> >      > Is this doable?
>>>> >      >
>>>> >      > Thanks
>>>> >      >
>>>> >      > ________
>>>> >      >
>>>> >      >
>>>> >      >
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><mailto:Gluster-users at gluster.org>
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>>>> >
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>>>