Thanks that helped!

Since I had already "halfway" created a lvm volume I wanted to start from the 
beginning and zap it.

Tried to zap the raw device but failed since --destroy doesn't seem to be in 
12.2.2

http://docs.ceph.com/docs/master/ceph-volume/lvm/zap/ 
<http://docs.ceph.com/docs/master/ceph-volume/lvm/zap/>

root@int1:~# ceph-volume lvm zap /dev/sdc --destroy
usage: ceph-volume lvm zap [-h] [DEVICE]
ceph-volume lvm zap: error: unrecognized arguments: --destroy

So i zapped it with the vg/lvm instead.
ceph-volume lvm zap 
/dev/ceph-efad7df8-721d-43d8-8d02-449406e70b90/osd-block-138ce507-f28a-45bf-814c-7fa124a9d9b9

However I run create on it since the LVM was already there.
So I zapped it with sgdisk and ran dmsetup remove. After that I was able to 
create it again.

However - each "ceph-volume lvm create" that I ran that failed, successfully 
added an osd to crush map ;)

So I've got this now:

root@int1:~# ceph osd df tree
ID CLASS WEIGHT  REWEIGHT SIZE  USE    AVAIL  %USE  VAR  PGS TYPE NAME
-1       2.60959        - 2672G  1101G  1570G 41.24 1.00   - root default
-2       0.87320        -  894G   369G   524G 41.36 1.00   -     host int1
 3   ssd 0.43660  1.00000  447G   358G 90295M 80.27 1.95 301         osd.3
 8   ssd 0.43660  1.00000  447G 11273M   436G  2.46 0.06  19         osd.8
-3       0.86819        -  888G   366G   522G 41.26 1.00   -     host int2
 1   ssd 0.43159  1.00000  441G   167G   274G 37.95 0.92 147         osd.1
 4   ssd 0.43660  1.00000  447G   199G   247G 44.54 1.08 173         osd.4
-4       0.86819        -  888G   365G   523G 41.09 1.00   -     host int3
 2   ssd 0.43159  1.00000  441G   193G   248G 43.71 1.06 174         osd.2
 5   ssd 0.43660  1.00000  447G   172G   274G 38.51 0.93 146         osd.5
 0             0        0     0      0      0     0    0   0 osd.0
 6             0        0     0      0      0     0    0   0 osd.6
 7             0        0     0      0      0     0    0   0 osd.7

I guess I can just remove them from crush,auth and rm them?

Kind Regards,

David Majchrzak

> 26 jan. 2018 kl. 18:09 skrev Reed Dier <reed.d...@focusvq.com>:
> 
> This is the exact issue that I ran into when starting my bluestore conversion 
> journey.
> 
> See my thread here: https://www.spinics.net/lists/ceph-users/msg41802.html 
> <https://www.spinics.net/lists/ceph-users/msg41802.html>
> 
> Specifying --osd-id causes it to fail.
> 
> Below are my steps for OSD replace/migrate from filestore to bluestore.
> 
> BIG caveat here in that I am doing destructive replacement, in that I am not 
> allowing my objects to be migrated off of the OSD I’m replacing before nuking 
> it.
> With 8TB drives it just takes way too long, and I trust my failure domains 
> and other hardware to get me through the backfills.
> So instead of 1) reading data off, writing data elsewhere 2) remove/re-add 3) 
> reading data elsewhere, writing back on, I am taking step one out, and 
> trusting my two other copies of the objects. Just wanted to clarify my steps.
> 
> I also set norecover and norebalance flags immediately prior to running these 
> commands so that it doesn’t try to start moving data unnecessarily. Then when 
> done, remove those flags, and let it backfill.
> 
>> systemctl stop ceph-osd@$ID.service
>> ceph-osd -i $ID --flush-journal
>> umount /var/lib/ceph/osd/ceph-$ID
>> ceph-volume lvm zap /dev/$ID
>> ceph osd crush remove osd.$ID
>> ceph auth del osd.$ID
>> ceph osd rm osd.$ID
>> ceph-volume lvm create --bluestore --data /dev/$DATA --block.db /dev/$NVME
> 
> So essentially I fully remove the OSD from crush and the osdmap, and when I 
> add the OSD back, like I would a new OSD, it fills in the numeric gap with 
> the $ID it had before.
> 
> Hope this is helpful.
> Been working well for me so far, doing 3 OSDs at a time (half of a failure 
> domain).
> 
> Reed
> 
>> On Jan 26, 2018, at 10:01 AM, David <da...@visions.se 
>> <mailto:da...@visions.se>> wrote:
>> 
>> 
>> Hi!
>> 
>> On luminous 12.2.2
>> 
>> I'm migrating some OSDs from filestore to bluestore using the "simple" 
>> method as described in docs: 
>> http://docs.ceph.com/docs/master/rados/operations/bluestore-migration/#convert-existing-osds
>>  
>> <http://docs.ceph.com/docs/master/rados/operations/bluestore-migration/#convert-existing-osds>
>> Mark out and Replace.
>> 
>> However, at 9.: ceph-volume create --bluestore --data $DEVICE --osd-id $ID
>> it seems to create the bluestore but it fails to authenticate with the old 
>> osd-id auth.
>> (the command above is also missing lvm or simple)
>> 
>> I think it's related to this:
>> http://tracker.ceph.com/issues/22642 <http://tracker.ceph.com/issues/22642>
>> 
>> # ceph-volume lvm create --bluestore --data /dev/sdc --osd-id 0
>> Running command: sudo vgcreate --force --yes 
>> ceph-efad7df8-721d-43d8-8d02-449406e70b90 /dev/sdc
>>  stderr: WARNING: lvmetad is running but disabled. Restart lvmetad before 
>> enabling it!
>>  stdout: Physical volume "/dev/sdc" successfully created
>>  stdout: Volume group "ceph-efad7df8-721d-43d8-8d02-449406e70b90" 
>> successfully created
>> Running command: sudo lvcreate --yes -l 100%FREE -n 
>> osd-block-138ce507-f28a-45bf-814c-7fa124a9d9b9 
>> ceph-efad7df8-721d-43d8-8d02-449406e70b90
>>  stderr: WARNING: lvmetad is running but disabled. Restart lvmetad before 
>> enabling it!
>>  stdout: Logical volume "osd-block-138ce507-f28a-45bf-814c-7fa124a9d9b9" 
>> created.
>> Running command: sudo mount -t tmpfs tmpfs /var/lib/ceph/osd/ceph-0
>> Running command: chown -R ceph:ceph /dev/dm-4
>> Running command: sudo ln -s 
>> /dev/ceph-efad7df8-721d-43d8-8d02-449406e70b90/osd-block-138ce507-f28a-45bf-814c-7fa124a9d9b9
>>  /var/lib/ceph/osd/ceph-0/block
>> Running command: sudo ceph --cluster ceph --name client.bootstrap-osd 
>> --keyring /var/lib/ceph/bootstrap-osd/ceph.keyring mon getmap -o 
>> /var/lib/ceph/osd/ceph-0/activate.monmap
>>  stderr: got monmap epoch 2
>> Running command: ceph-authtool /var/lib/ceph/osd/ceph-0/keyring 
>> --create-keyring --name osd.0 --add-key XXXXXXXX
>>  stdout: creating /var/lib/ceph/osd/ceph-0/keyring
>>  stdout: added entity osd.0 auth auth(auid = 18446744073709551615 key= 
>> XXXXXXXX with 0 caps)
>> Running command: chown -R ceph:ceph /var/lib/ceph/osd/ceph-0/keyring
>> Running command: chown -R ceph:ceph /var/lib/ceph/osd/ceph-0/
>> Running command: sudo ceph-osd --cluster ceph --osd-objectstore bluestore 
>> --mkfs -i 0 --monmap /var/lib/ceph/osd/ceph-0/activate.monmap --key 
>> **************************************** --osd-data 
>> /var/lib/ceph/osd/ceph-0/ --osd-uuid 138ce507-f28a-45bf-814c-7fa124a9d9b9 
>> --setuser ceph --setgroup ceph
>>  stderr: 2018-01-26 14:59:10.039549 7fd7ef951cc0 -1 
>> bluestore(/var/lib/ceph/osd/ceph-0//block) _read_bdev_label unable to decode 
>> label at offset 102: buffer::malformed_input: void 
>> bluestore_bdev_label_t::decode(ceph::buffer::list::iterator&) decode past 
>> end of struct encoding
>>  stderr: 2018-01-26 14:59:10.039744 7fd7ef951cc0 -1 
>> bluestore(/var/lib/ceph/osd/ceph-0//block) _read_bdev_label unable to decode 
>> label at offset 102: buffer::malformed_input: void 
>> bluestore_bdev_label_t::decode(ceph::buffer::list::iterator&) decode past 
>> end of struct encoding
>>  stderr: 2018-01-26 14:59:10.039925 7fd7ef951cc0 -1 
>> bluestore(/var/lib/ceph/osd/ceph-0//block) _read_bdev_label unable to decode 
>> label at offset 102: buffer::malformed_input: void 
>> bluestore_bdev_label_t::decode(ceph::buffer::list::iterator&) decode past 
>> end of struct encoding
>>  stderr: 2018-01-26 14:59:10.039984 7fd7ef951cc0 -1 
>> bluestore(/var/lib/ceph/osd/ceph-0/) _read_fsid unparsable uuid
>>  stderr: 2018-01-26 14:59:11.359951 7fd7ef951cc0 -1 key XXXXXXXX
>>  stderr: 2018-01-26 14:59:11.888476 7fd7ef951cc0 -1 created object store 
>> /var/lib/ceph/osd/ceph-0/ for osd.0 fsid efad7df8-721d-43d8-8d02-449406e70b90
>> Running command: sudo ceph-bluestore-tool --cluster=ceph prime-osd-dir --dev 
>> /dev/ceph-efad7df8-721d-43d8-8d02-449406e70b90/osd-block-138ce507-f28a-45bf-814c-7fa124a9d9b9
>>  --path /var/lib/ceph/osd/ceph-0
>> Running command: sudo ln -snf 
>> /dev/ceph-efad7df8-721d-43d8-8d02-449406e70b90/osd-block-138ce507-f28a-45bf-814c-7fa124a9d9b9
>>  /var/lib/ceph/osd/ceph-0/block
>> Running command: chown -R ceph:ceph /dev/dm-4
>> Running command: chown -R ceph:ceph /var/lib/ceph/osd/ceph-0
>> Running command: sudo systemctl enable 
>> ceph-volume@lvm-0-138ce507-f28a-45bf-814c-7fa124a9d9b9
>>  stderr: Created symlink from 
>> /etc/systemd/system/multi-user.target.wants/ceph-volume@lvm-0-138ce507-f28a-45bf-814c-7fa124a9d9b9.service
>>  
>> <mailto:etc/systemd/system/multi-user.target.wants/ceph-volume@lvm-0-138ce507-f28a-45bf-814c-7fa124a9d9b9.service>
>>  to /lib/systemd/system/ceph-volume@.service.
>> Running command: sudo systemctl start ceph-osd@0
>> 
>> ceph-osd.0.log shows:
>> 
>> 2018-01-26 15:09:07.379039 7f545d3b9cc0  4 rocksdb: 
>> [/build/ceph-12.2.2/src/rocksdb/db/version_set.cc:2859 
>> <http://version_set.cc:2859/>] Recovered from manifest 
>> file:db/MANIFEST-000095 succeeded,manifest_file_number is 95, 
>> next_file_number is 97, last_sequence is 21, log_number is 0,prev_log_number 
>> is 0,max_column_family is 0
>> 
>> 2018-01-26 15:09:07.379046 7f545d3b9cc0  4 rocksdb: 
>> [/build/ceph-12.2.2/src/rocksdb/db/version_set.cc:2867 
>> <http://version_set.cc:2867/>] Column family [default] (ID 0), log number is 
>> 94
>> 
>> 2018-01-26 15:09:07.379087 7f545d3b9cc0  4 rocksdb: EVENT_LOG_v1 
>> {"time_micros": 1516979347379083, "job": 1, "event": "recovery_started", 
>> "log_files": [96]}
>> 2018-01-26 15:09:07.379091 7f545d3b9cc0  4 rocksdb: 
>> [/build/ceph-12.2.2/src/rocksdb/db/db_impl_open.cc:482 
>> <http://db_impl_open.cc:482/>] Recovering log #96 mode 0
>> 2018-01-26 15:09:07.379102 7f545d3b9cc0  4 rocksdb: 
>> [/build/ceph-12.2.2/src/rocksdb/db/version_set.cc:2395 
>> <http://version_set.cc:2395/>] Creating manifest 98
>> 
>> 2018-01-26 15:09:07.380466 7f545d3b9cc0  4 rocksdb: EVENT_LOG_v1 
>> {"time_micros": 1516979347380463, "job": 1, "event": "recovery_finished"}
>> 2018-01-26 15:09:07.381331 7f545d3b9cc0  4 rocksdb: 
>> [/build/ceph-12.2.2/src/rocksdb/db/db_impl_open.cc:1063 
>> <http://db_impl_open.cc:1063/>] DB pointer 0x556ecb8c3000
>> 2018-01-26 15:09:07.381353 7f545d3b9cc0  1 
>> bluestore(/var/lib/ceph/osd/ceph-0) _open_db opened rocksdb path db options 
>> compression=kNoCompression,max_write_buffer_number=4,min_write_buffer_number_to_merge=1,recycle_log_file_num=4,write_buffer_size=268435456,writable_file_max_buffer_size=0,compaction_readahead_size=2097152
>> 2018-01-26 15:09:07.381616 7f545d3b9cc0  1 freelist init
>> 2018-01-26 15:09:07.381660 7f545d3b9cc0  1 
>> bluestore(/var/lib/ceph/osd/ceph-0) _open_alloc opening allocation metadata
>> 2018-01-26 15:09:07.381679 7f545d3b9cc0  1 
>> bluestore(/var/lib/ceph/osd/ceph-0) _open_alloc loaded 447 G in 1 extents
>> 2018-01-26 15:09:07.382077 7f545d3b9cc0  0 _get_class not permitted to load 
>> kvs
>> 2018-01-26 15:09:07.382309 7f545d3b9cc0  0 <cls> 
>> /build/ceph-12.2.2/src/cls/cephfs/cls_cephfs.cc:197 
>> <http://cls_cephfs.cc:197/>: loading cephfs
>> 2018-01-26 15:09:07.382583 7f545d3b9cc0  0 _get_class not permitted to load 
>> sdk
>> 2018-01-26 15:09:07.382827 7f545d3b9cc0  0 <cls> 
>> /build/ceph-12.2.2/src/cls/hello/cls_hello.cc:296 
>> <http://cls_hello.cc:296/>: loading cls_hello
>> 2018-01-26 15:09:07.385755 7f545d3b9cc0  0 _get_class not permitted to load 
>> lua
>> 2018-01-26 15:09:07.386073 7f545d3b9cc0  0 osd.0 0 crush map has features 
>> 288232575208783872, adjusting msgr requires for clients
>> 2018-01-26 15:09:07.386078 7f545d3b9cc0  0 osd.0 0 crush map has features 
>> 288232575208783872 was 8705, adjusting msgr requires for mons
>> 2018-01-26 15:09:07.386079 7f545d3b9cc0  0 osd.0 0 crush map has features 
>> 288232575208783872, adjusting msgr requires for osds
>> 2018-01-26 15:09:07.386132 7f545d3b9cc0  0 osd.0 0 load_pgs
>> 2018-01-26 15:09:07.386134 7f545d3b9cc0  0 osd.0 0 load_pgs opened 0 pgs
>> 2018-01-26 15:09:07.386137 7f545d3b9cc0  0 osd.0 0 using weightedpriority op 
>> queue with priority op cut off at 64.
>> 2018-01-26 15:09:07.386580 7f545d3b9cc0 -1 osd.0 0 log_to_monitors 
>> {default=true}
>> 2018-01-26 15:09:07.388077 7f545d3b9cc0 -1 osd.0 0 init authentication 
>> failed: (1) Operation not permitted
>> 
>> 
>> The old osd is still there.
>> 
>> # ceph osd tree
>> ID CLASS WEIGHT  TYPE NAME     STATUS    REWEIGHT PRI-AFF
>> -1       2.60458 root default
>> -2       0.86819     host int1
>>  0   ssd 0.43159         osd.0 destroyed        0 1.00000
>>  3   ssd 0.43660         osd.3        up  1.00000 1.00000
>> -3       0.86819     host int2
>>  1   ssd 0.43159         osd.1        up  1.00000 1.00000
>>  4   ssd 0.43660         osd.4        up  1.00000 1.00000
>> -4       0.86819     host int3
>>  2   ssd 0.43159         osd.2        up  1.00000 1.00000
>>  5   ssd 0.43660         osd.5        up  1.00000 1.00000
>> 
>> 
>> What's the best course of action? Purging osd.0, zapping the device again 
>> and creating without --osd-id set?
>> 
>> 
>> Kind Regards,
>> 
>> David Majchrzak
>> _______________________________________________
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>> ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com>
>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> 

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