[ceph-users] Filestore to Bluestore migration question

Alfredo Deza adeza at redhat.com
Tue Nov 6 13:32:44 PST 2018


It is pretty difficult to know what step you are missing if we are
getting the `activate --all` command.

Maybe if you try one by one, capturing each command, throughout the
process, with output. In the filestore-to-bluestore guides we never
advertise `activate --all` for example.

Something is missing here, and I can't tell what it is.
On Tue, Nov 6, 2018 at 4:13 PM Hayashida, Mami <mami.hayashida at uky.edu> wrote:
>
> This is becoming even more confusing. I got rid of those ceph-disk at 6[0-9].service (which had been symlinked to /dev/null).  Moved /var/lib/ceph/osd/ceph-6[0-9] to  /var/...../osd_old/.  Then, I ran  `ceph-volume lvm activate --all`.  I got once again
>
> root at osd1:~# ceph-volume lvm activate --all
> --> Activating OSD ID 67 FSID 17cd6755-76f9-4160-906c-1bf13d09fb3d
> Running command: mount -t tmpfs tmpfs /var/lib/ceph/osd/ceph-67
> --> Absolute path not found for executable: restorecon
> --> Ensure $PATH environment variable contains common executable locations
> Running command: ceph-bluestore-tool --cluster=ceph prime-osd-dir --dev /dev/hdd67/data67 --path /var/lib/ceph/osd/ceph-67
>  stderr: failed to read label for /dev/hdd67/data67: (2) No such file or directory
> -->  RuntimeError: command returned non-zero exit status: 1
>
> But when I ran `df` and `mount` ceph-67 is the only one that exists. (and in  /var/lib/ceph/osd/)
>
> root at osd1:~# df -h | grep ceph-6
> tmpfs           126G     0  126G   0% /var/lib/ceph/osd/ceph-67
>
> root at osd1:~# mount | grep ceph-6
> tmpfs on /var/lib/ceph/osd/ceph-67 type tmpfs (rw,relatime)
>
> root at osd1:~# ls /var/lib/ceph/osd/ | grep ceph-6
> ceph-67
>
> But in I cannot restart any of these 10 daemons (`systemctl start ceph-osd at 6[0-9]`).
>
> I am wondering if I should zap these 10 osds and start over although at this point I am afraid even zapping may not be a simple task....
>
>
>
> On Tue, Nov 6, 2018 at 3:44 PM, Hector Martin <hector at marcansoft.com> wrote:
>>
>> On 11/7/18 5:27 AM, Hayashida, Mami wrote:
>> > 1. Stopped osd.60-69:  no problem
>> > 2. Skipped this and went to #3 to check first
>> > 3. Here, `find /etc/systemd/system | grep ceph-volume` returned
>> > nothing.  I see in that directory
>> >
>> > /etc/systemd/system/ceph-disk at 60.service    # and 61 - 69.
>> >
>> > No ceph-volume entries.
>>
>> Get rid of those, they also shouldn't be there. Then `systemctl
>> daemon-reload` and continue, see if you get into a good state. basically
>> feel free to nuke anything in there related to OSD 60-69, since whatever
>> is needed should be taken care of by the ceph-volume activation.
>>
>>
>> --
>> Hector Martin (hector at marcansoft.com)
>> Public Key: https://mrcn.st/pub
>
>
>
>
> --
> Mami Hayashida
> Research Computing Associate
>
> Research Computing Infrastructure
> University of Kentucky Information Technology Services
> 301 Rose Street | 102 James F. Hardymon Building
> Lexington, KY 40506-0495
> mami.hayashida at uky.edu
> (859)323-7521


More information about the ceph-users mailing list