Re: [Bluestore] Some of my osd's uses BlueFS slow storage for db - why?

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On 2/19/19 11:46 PM, David Turner wrote:
I don't know that there's anything that can be done to resolve this yet without rebuilding the OSD.  Based on a Nautilus tool being able to resize the DB device, I'm assuming that Nautilus is also capable of migrating the DB/WAL between devices.  That functionality would allow anyone to migrate their DB back off of their spinner which is what's happening to you.  I don't believe that sort of tooling exists yet, though, without compiling the Nautilus Beta tooling for yourself.

I think there you are wrong, initially bluestore tool can expand only wal/db devices [1]. With last releases of mimic and luminous this should work fine.

And only master received  feature for main device expanding [2].



[1] https://github.com/ceph/ceph/commit/2184e3077caa9de5f21cc901d26f6ecfb76de9e1

[2] https://github.com/ceph/ceph/commit/d07c10dfc02e4cdeda288bf39b8060b10da5bbf9

k

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