[ceph-users] Filestore to Bluestore migration question

Alfredo Deza adeza at redhat.com
Mon Nov 5 10:24:29 PST 2018


On Mon, Nov 5, 2018 at 12:54 PM Hayashida, Mami <mami.hayashida at uky.edu> wrote:
>
> I commented out those lines and, yes, I was able to restart the system and all the Filestore OSDs are now running.  But when I cannot start converted Bluestore OSDs (service).   When I look up the log for osd.60, this is what I see:

Something/someone may have added those entries in fstab. It is
certainly not something that ceph-disk or ceph-volume would ever do.
Glad you found them and removed them.


>
> 2018-11-05 12:47:00.756794 7f1f2775ae00  0 set uid:gid to 64045:64045 (ceph:ceph)
> 2018-11-05 12:47:00.756821 7f1f2775ae00  0 ceph version 12.2.9 (9e300932ef8a8916fb3fda78c58691a6ab0f4217) luminous (stable), process ceph-osd, pid 33706
> 2018-11-05 12:47:00.776554 7f1f2775ae00  0 pidfile_write: ignore empty --pid-file
> 2018-11-05 12:47:00.788716 7f1f2775ae00  0 load: jerasure load: lrc load: isa
> 2018-11-05 12:47:00.788803 7f1f2775ae00  1 bdev create path /var/lib/ceph/osd/ceph-60/block type kernel
> 2018-11-05 12:47:00.788818 7f1f2775ae00  1 bdev(0x564350f4ad80 /var/lib/ceph/osd/ceph-60/block) open path /var/lib/ceph/osd/ceph-60/block
> 2018-11-05 12:47:00.789179 7f1f2775ae00  1 bdev(0x564350f4ad80 /var/lib/ceph/osd/ceph-60/block) open size 10737418240 (0x280000000, 10GiB) block_size 4096 (4KiB) rotational
> 2018-11-05 12:47:00.789257 7f1f2775ae00  1 bluestore(/var/lib/ceph/osd/ceph-60) _set_cache_sizes cache_size 1073741824 meta 0.4 kv 0.4 data 0.2
> 2018-11-05 12:47:00.789286 7f1f2775ae00  1 bdev(0x564350f4ad80 /var/lib/ceph/osd/ceph-60/block) close
> 2018-11-05 12:47:01.075002 7f1f2775ae00  1 bluestore(/var/lib/ceph/osd/ceph-60) _mount path /var/lib/ceph/osd/ceph-60
> 2018-11-05 12:47:01.075069 7f1f2775ae00  1 bdev create path /var/lib/ceph/osd/ceph-60/block type kernel
> 2018-11-05 12:47:01.075078 7f1f2775ae00  1 bdev(0x564350f4afc0 /var/lib/ceph/osd/ceph-60/block) open path /var/lib/ceph/osd/ceph-60/block
> 2018-11-05 12:47:01.075391 7f1f2775ae00  1 bdev(0x564350f4afc0 /var/lib/ceph/osd/ceph-60/block) open size 10737418240 (0x280000000, 10GiB) block_size 4096 (4KiB) rotational
> 2018-11-05 12:47:01.075450 7f1f2775ae00  1 bluestore(/var/lib/ceph/osd/ceph-60) _set_cache_sizes cache_size 1073741824 meta 0.4 kv 0.4 data 0.2
> 2018-11-05 12:47:01.075536 7f1f2775ae00  1 bdev create path /var/lib/ceph/osd/ceph-60/block.db type kernel
> 2018-11-05 12:47:01.075544 7f1f2775ae00  1 bdev(0x564350f4b200 /var/lib/ceph/osd/ceph-60/block.db) open path /var/lib/ceph/osd/ceph-60/block.db
> 2018-11-05 12:47:01.075555 7f1f2775ae00 -1 bdev(0x564350f4b200 /var/lib/ceph/osd/ceph-60/block.db) open open got: (13) Permission denied
> 2018-11-05 12:47:01.075573 7f1f2775ae00 -1 bluestore(/var/lib/ceph/osd/ceph-60) _open_db add block device(/var/lib/ceph/osd/ceph-60/block.db) returned: (13) Permission denied
> 2018-11-05 12:47:01.075589 7f1f2775ae00  1 bdev(0x564350f4afc0 /var/lib/ceph/osd/ceph-60/block) close
> 2018-11-05 12:47:01.346356 7f1f2775ae00 -1 osd.60 0 OSD:init: unable to mount object store
> 2018-11-05 12:47:01.346378 7f1f2775ae00 -1  ** ERROR: osd init failed: (13) Permission denied

If this has already been converted and it is ceph-volume trying to
start it, could you please try activating that one OSD with:

    ceph-volume lvm activate <OSD ID> <OSD FSID>

And paste the output here, and then if possible, capture the relevant
part of that CLI call from /var/log/ceph/ceph-volume.log
>
>
>
>
> On Mon, Nov 5, 2018 at 12:34 PM, Hector Martin <hector at marcansoft.com> wrote:
>>
>> On 11/6/18 2:01 AM, Hayashida, Mami wrote:
>> > I did find in /etc/fstab entries like this for those 10 disks
>> >
>> > /dev/sdh1   /var/lib/ceph/osd/ceph-60  xfs noatime,nodiratime 0 0
>> >
>> > Should I comment all 10 of them out (for osd.{60-69}) and try rebooting
>> > again?
>>
>> Yes. Anything that references any of the old partitions that don't exist
>> (/dev/sdh1 etc) should be removed. The disks are now full-disk LVM PVs
>> and should have no partitions.
>>
>> --
>> 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


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