I think I need help with some OSD trouble. OSD daemons on two hosts started flapping. At length, I rebooted host osd1 (osd.3), but the OSD daemon still fails to start. Upon closer inspection, ceph-disk@dev-sdb2.service is failing to start due to, "Error: /dev/sdb2 is not a block device"
This is the command I see it failing to run: roger@osd1:~$ sudo /usr/sbin/ceph-disk --verbose activate-block /dev/sdb2 Traceback (most recent call last): File "/usr/sbin/ceph-disk", line 9, in <module> load_entry_point('ceph-disk==1.0.0', 'console_scripts', 'ceph-disk')() File "/usr/lib/python2.7/dist-packages/ceph_disk/main.py", line 5731, in run main(sys.argv[1:]) File "/usr/lib/python2.7/dist-packages/ceph_disk/main.py", line 5682, in main args.func(args) File "/usr/lib/python2.7/dist-packages/ceph_disk/main.py", line 5438, in <lambda> func=lambda args: main_activate_space(name, args), File "/usr/lib/python2.7/dist-packages/ceph_disk/main.py", line 4160, in main_activate_space osd_uuid = get_space_osd_uuid(name, dev) File "/usr/lib/python2.7/dist-packages/ceph_disk/main.py", line 4115, in get_space_osd_uuid raise Error('%s is not a block device' % path) ceph_disk.main.Error: Error: /dev/sdb2 is not a block device osd1 environment: $ ceph -v ceph version 12.1.1 (f3e663a190bf2ed12c7e3cda288b9a159572c800) luminous (rc) $ uname -r 4.4.0-83-generic $ lsb_release -sc xenial Please advise.
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