[PVE-User] Ceph: sudden slow ops, freezes, and slow-downs

[Eneko Lacunza]

Hi,

Can you post a "ceph tree"?

I'd suspect of a disk issue. Did you check laggy PG's OSDs?

You can also try mysqlbackup with OSDs from one node down, to see if 
issue is in one of the nodes...

Good luck!

El 22/6/22 a las 20:39, Branislav Viest escribió:
> Hello,
>
> I have experienced some serious difficulties with our Ceph cluster built-in from 4 nodes. I have created a proxmox forum topic regarding this problem and I think it is useless to type all the information in this mailing thread. I would like to ask you guys to check it out and if anyone has any idea what should cause this problem, what should be a problem, or how to solve it, I would be very sincere and thankful. Any idea or your experience is worthy.
>
> We have already begun the migration process to another provider but I want to know the answer or the problem roots anyway to prevent possible failure or problems after migration.
>
> The topic is here: [https://forum.proxmox.com/threads/ceph-sudden-slow-ops-freezes-and-slow-downs.111144/  |https://forum.proxmox.com/threads/ceph-sudden-slow-ops-freezes-and-slow-downs.111144/  ]
>
> Thank you all.
>
> ------------
> Best Regards
>
> Branislav Brian Viest
> linux administrator
>
> ------------
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Eneko Lacunza
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