Public bug reported:
when trying to add a new-db to an existing LVM OSD,
ceph-volume lvm new-db fails requiring 'bluestore-block-db-size' parameter even
this bug should be resolved by https://tracker.ceph.com/issues/55260
my env:
root@op1:~# lsb_release -r
Release: 22.04
root@op1:~# lsb_release -rd
Description: Ubuntu 22.04.4 LTS
Release: 22.04
ceph-volume 18.2.0-0ubuntu3~cloud0
lv db volume:
root@op1:~# lvdisplay vol_db/c1
--- Logical volume ---
LV Path /dev/vol_db/c1
LV Name c1
VG Name vol_db
LV UUID uCv6n3-Wa0H-0DaO-GGsc-Wa4c-VLfb-7KqG7X
LV Write Access read/write
LV Creation host, time op1.maas, 2024-08-01 16:27:22 +0000
LV Status available
# open 0
LV Size 166.00 GiB
Current LE 42496
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:10
what happens when I try to add a new block.db to an OSD:
root@op1:~# ceph-volume lvm new-db --osd-id 42 --osd-fsid
f720deb5-70eb-4a94-8c14-ca1d07e4a21c --target vol_db/c1 --no-systemd
--> Making new volume at /dev/vol_db/c1 for OSD: 42 (/var/lib/ceph/osd/ceph-42)
stdout: inferring bluefs devices from bluestore path
stderr: Might need DB size specification, please set Ceph
bluestore-block-db-size config parameter
--> failed to attach new volume, error code:1
--> Undoing lv tag set
Failed to attach new volume: vol_db/c1
after that, even the error, osd.42 seems to have a block.db
root@op1:~# ceph-volume lvm list 42
====== osd.42 ======
[block] /dev/ceph-f720deb5-70eb-4a94-8c14-ca1d07e4a21c/osd-
block-f720deb5-70eb-4a94-8c14-ca1d07e4a21c
block device
/dev/ceph-f720deb5-70eb-4a94-8c14-ca1d07e4a21c/osd-block-f720deb5-70eb-4a94-8c14-ca1d07e4a21c
block uuid Li93WA-x5oR-rep1-21D1-sJ9m-4lII-msenUU
cephx lockbox secret
cluster fsid 7dfd9e3a-a5b6-11ee-9798-619012c1bb3a
cluster name ceph
crush device class
db device /dev/vol_db/c1
db uuid l10sEJ-a3Gt-m8AK-eXA6-qTJW-82su-VngPmP
encrypted 0
osd fsid f720deb5-70eb-4a94-8c14-ca1d07e4a21c
osd id 42
osdspec affinity
type block
vdo 0
devices /dev/sdc
but block.db doesn't exist and from now, when restarting osd.42 it
always fails.
The only solution is remove osd.42 and re-create it with block.db, but
ceph takes a lot of time to recover from the disk delete/create commands
** Affects: ceph (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2075541
Title:
ceph-volume lvm new-db requires 'bluestore-block-db-size' parameter
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