Re: CEPH MON crash

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> journalctl shows that they crashed and a core dump was created. Would
> that be a bug? Or a corrupt DB?

Impossible to be conclusive without more data: coredumps and logs.
Would you mind creating a ticket via
https://tracker.ceph.com/projects/rados/issues/new?
Even a backtrace could throw more light.

Regards,
Radek

On Wed, Feb 7, 2024 at 5:09 AM Raul H C Lopes
<raul.cardoso.lopes@xxxxxxx> wrote:
>
> Dear CEPH dev team,
>
>
> I have a CEPH cluster with three MONs two of each are down. When I try
> to start them they crash and
>
> journalctl shows that they crashed and a core dump was created. Would
> that be a bug? Or a corrupt DB?
>
>
> I have then a third MON that starts fine but when I get mon_status
> through the admin-socket I see
>
>   "quorum": []
>
>   "state": "probing"
>
>
> because of that  (I believe) I cannot use 'ceph orch' to create new  MONs.
>
>
> So my questions:
>
>   - Is there way that I can use 'ceph orch' to create new MONS?
>
>   - Can I just rsync the store.db from this running node to the crashing
> MON nodes?
>
> - Or do  I have to rebuild the store.db using a script as in
>
>
>   https://docs.ceph.com/en/latest/rados/troubleshooting/troubleshooting-mon/#mon-store-recovery-using-osds
>
>
> Regards,
>
> Raul
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