Ceph 16 upgrade warning also valid for proxmox users?

[Eneko Lacunza]

Hi Harald,

We have 2 clusters upgraded to Pacific, they're working well although we 
had an issue triggered by Proxmox 7 cluster instability and Ceph didn't 
recover very well. (see my previous posts)

You won't hit data-lossing bug if you don't trigger it after upgrading, 
that is the current understanding here and on Ceph user mailing list.

Anyway I recommend not to upgrade to Pacific yet, we stopped upgrading 
clusters we manage until Pacific is more mature.

Cheers

El 18/11/21 a las 19:02, Harald Leithner escribió:
> Hi,
>
> the ceph release packages site has a big red warning not to upgrade 
> from earlier versions to Pacific.
>
> So when I haven't updated to Pacific yet, should I wait or is it safe 
> to upgrade for what ever reason?
>
> https://docs.ceph.com/en/latest/releases/pacific/
>
> -- 
> DATE: 01 NOV 2021.
>
> DO NOT UPGRADE TO CEPH PACIFIC FROM AN OLDER VERSION.
>
> A recently-discovered bug (https://tracker.ceph.com/issues/53062) can 
> cause data corruption. This bug occurs during OMAP format conversion 
> for clusters that are updated to Pacific. New clusters are not 
> affected by this bug.
>
> The trigger for this bug is BlueStore’s repair/quick-fix 
> functionality. This bug can be triggered in two known ways:
>
> manually via the ceph-bluestore-tool, or
>
> automatically, by OSD if bluestore_fsck_quick_fix_on_mount is set to 
> true.
>
> The fix for this bug is expected to be available in Ceph v16.2.7.
>
> DO NOT set bluestore_quick_fix_on_mount to true. If it is currently 
> set to true in your configuration, immediately set it to false.
>
> DO NOT run ceph-bluestore-tool’s repair/quick-fix commands.
> -- 
>
> thanks
>
> Harald
>
>
> _______________________________________________
> pve-user mailing list
> pve-user at lists.proxmox.com
> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user

Eneko Lacunza
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Binovo IT Human Project

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