[PVE-User] Proxmox CEPH 6 servers failures!

dorsy dorsyka at yahoo.com
Fri Oct 5 14:38:02 CEST 2018


moveing from 6 to 8 mons and loosing 4 of them instead of 3 will not 
save you.

Basic maths:
floor((n/2)+1)

On 2018. 10. 05. 14:31, Gilberto Nunes wrote:
> Nice.. Perhaps if I create a VM in Proxmox01 and Proxmox02, and join this
> VM into Cluster Ceph, can I solve to quorum problem?
> ---
> Gilberto Nunes Ferreira
>
> (47) 3025-5907
> (47) 99676-7530 - Whatsapp / Telegram
>
> Skype: gilberto.nunes36
>
>
>
>
>
> Em sex, 5 de out de 2018 às 09:23, dorsy <dorsyka at yahoo.com> escreveu:
>
>> Your question has already been answered. You need majority to have quorum.
>>
>> On 2018. 10. 05. 14:10, Gilberto Nunes wrote:
>>> Hi
>>> Perhaps this can help:
>>>
>>> https://imageshack.com/a/img921/6208/X7ha8R.png
>>>
>>> I was thing about it, and perhaps if I deploy a VM in both side, with
>>> Proxmox and add this VM to the CEPH cluster, maybe this can help!
>>>
>>> thanks
>>> ---
>>> Gilberto Nunes Ferreira
>>>
>>> (47) 3025-5907
>>> (47) 99676-7530 - Whatsapp / Telegram
>>>
>>> Skype: gilberto.nunes36
>>>
>>>
>>>
>>>
>>>
>>> Em sex, 5 de out de 2018 às 03:55, Alexandre DERUMIER <
>> aderumier at odiso.com>
>>> escreveu:
>>>
>>>> Hi,
>>>>
>>>> Can you resend your schema, because it's impossible to read.
>>>>
>>>>
>>>> but you need to have to quorum on monitor to have the cluster working.
>>>>
>>>>
>>>> ----- Mail original -----
>>>> De: "Gilberto Nunes" <gilberto.nunes32 at gmail.com>
>>>> À: "proxmoxve" <pve-user at pve.proxmox.com>
>>>> Envoyé: Jeudi 4 Octobre 2018 22:05:16
>>>> Objet: [PVE-User] Proxmox CEPH 6 servers failures!
>>>>
>>>> Hi there
>>>>
>>>> I have something like this:
>>>>
>>>> CEPH01 ----|
>>>> |----- CEPH04
>>>> |
>>>> |
>>>> CEPH02 ----|-----------------------------------------------------|----
>>>> CEPH05
>>>> | Optic Fiber
>>>> |
>>>> CEPH03 ----|
>>>> |--- CEPH06
>>>>
>>>> Sometime, when Optic Fiber not work, and just CEPH01, CEPH02 and CEPH03
>>>> remains, the entire cluster fail!
>>>> I find out the cause!
>>>>
>>>> ceph.conf
>>>>
>>>> [global] auth client required = cephx auth cluster required = cephx auth
>>>> service required = cephx cluster network = 10.10.10.0/24 fsid =
>>>> e67534b4-0a66-48db-ad6f-aa0868e962d8 keyring =
>>>> /etc/pve/priv/$cluster.$name.keyring mon allow pool delete = true osd
>>>> journal size = 5120 osd pool default min size = 2 osd pool default size
>> =
>>>> 3
>>>> public network = 10.10.10.0/24 [osd] keyring =
>>>> /var/lib/ceph/osd/ceph-$id/keyring [mon.pve-ceph01] host = pve-ceph01
>> mon
>>>> addr = 10.10.10.100:6789 mon osd allow primary affinity = true
>>>> [mon.pve-ceph02] host = pve-ceph02 mon addr = 10.10.10.110:6789 mon osd
>>>> allow primary affinity = true [mon.pve-ceph03] host = pve-ceph03 mon
>> addr
>>>> =
>>>> 10.10.10.120:6789 mon osd allow primary affinity = true
>> [mon.pve-ceph04]
>>>> host = pve-ceph04 mon addr = 10.10.10.130:6789 mon osd allow primary
>>>> affinity = true [mon.pve-ceph05] host = pve-ceph05 mon addr =
>>>> 10.10.10.140:6789 mon osd allow primary affinity = true
>> [mon.pve-ceph06]
>>>> host = pve-ceph06 mon addr = 10.10.10.150:6789 mon osd allow primary
>>>> affinity = true
>>>>
>>>> Any help will be welcome!
>>>>
>>>> ---
>>>> Gilberto Nunes Ferreira
>>>>
>>>> (47) 3025-5907
>>>> (47) 99676-7530 - Whatsapp / Telegram
>>>>
>>>> Skype: gilberto.nunes36
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