When Ceph OSD spins up using ceph-volume, `ceph-volume lvm activate
--no-systemd --bluestore...` runs `lvs` which can cause significant
delays when /run/udev is not mounted from the host.
Before:
[root@rook-ceph-osd-0-858f49b5-md4t9 /]# time lvs
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
WARNING: Device /dev/sda not initialized in udev database even after waiting 10000000 microseconds.
...
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
osd-data-729c1fb6-440f-434c-be49-f199fa59f1c0 ceph-3bf7823b-6db3-42b6-bf8f-c36301e85238 -wi-ao---- <10.00g
real 1m30.545s
After:
[root@rook-ceph-osd-0-d8c4698b8-5vqnk /]# time lvs
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
osd-data-6c7249cc-cbd1-4f3b-9027-03725886bb30 ceph-9808319f-8567-4930-803a-41f70e537c1f -wi-ao---- <10.00g
real 0m0.043s
Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Noah Watkins
c25e262c75