Did you recreate the OSD with the same UUID? I'm guessing ceph-volume
just reads LV tags and thinks there's a block.db for that OSD. Before
creating the OSD you should also wipe the LV containing the block.db
for the failed OSD.
Zitat von Philip Brown <pbrown@xxxxxxxxxx>:
It was up and running.
I should mention that the situation came about when I was testing
OSD rebuild.
So I had a previously autogenerated hybrid OSD, with SSD db, and HDD
block dev.
I then stopped the OSD, wiped HDD, .... did "ceph osd rm" and ceph auth rm.
and then rebuilt with ceph-volume.. with the wrong flags.
I belive I used:
ceph-volume lvm create --block /dev/xxx --journal /dev/blahblah
After that, ceph-volume lvm list
claimed it was using the ssd again as db device. but ls -l on
/var/lib/ceph/osd/XXXX only showed symlink for block dev.
This was on nautilus.
----- Original Message -----
From: "Eugen Block" <eblock@xxxxxx>
To: "ceph-users" <ceph-users@xxxxxxx>
Sent: Tuesday, April 6, 2021 5:20:40 AM
Subject: Re: which is definitive: /var/lib/ceph
symlinks or ceph-volume?
Is the OSD up and running?
Do you see IO on the dedicated block.db LV when running a 'ceph tell
osd.7 bench'? It sounds very strange, I haven't seen that.
Zitat von Philip Brown <pbrown@xxxxxxxxxx>:
I am in a situation where I see conflicting information.
On the one hand,
ls -l /var/lib/ceph/osd/ceph-7
shows a symlink for block device, but no block.db
On the other hand,
ceph-volume lvm list
claims that there is a separate db device registered for osd 7
how can I know which one is correct?
(This is currently ceph nautilus)
--
Philip Brown| Sr. Linux System Administrator | Medata, Inc.
5 Peters Canyon Rd Suite 250
Irvine CA 92606
Office 714.918.1310| Fax 714.918.1325
pbrown@xxxxxxxxxx| www.medata.com
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