Re: MDS damaged after mimic 13.2.1 to 13.2.2 upgrade

[Sergey Malinin <hell@xxxxxxxxxxx>]

On 8.10.2018, at 16:07, Alfredo Daniel Rezinovsky <alfrenovsky@xxxxxxxxx> wrote:

So I can stopt  cephfs-data-scan, run the import, downgrade, and then reset the purge queue?

I suggest that you backup metadata pool so that in case of failure you can continue with data scan from where you stopped.

I've read somewhere that backup must be done using rados export rather that cppool in order to keep omapkeys.

Please remember me the commands:
I've been 3 days without sleep, and I don't wanna to broke it more.

Lucky man, I've been struggling with it for almost 2 weeks.

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