See trace below. We run this command on system restart in order to clear any blacklist which was created while node was mis-behaving. Now, rather than giving a reasonable error, it causes at Traceback: [root@node-172-20-0-13 ~]# ceph osd blacklist rm 172.20.0.13 Traceback (most recent call last): File "/usr/bin/ceph", line 774, in <module> sys.exit(main()) File "/usr/bin/ceph", line 717, in main sigdict, inbuf, verbose) File "/usr/bin/ceph", line 375, in new_style_command valid_dict = validate_command(sigdict, cmdargs, verbose) File "/usr/lib64/python2.7/site-packages/ceph_argparse.py", line 890, in validate_command File "/usr/lib64/python2.7/site-packages/ceph_argparse.py", line 715, in matchnum File "/usr/lib64/python2.7/site-packages/ceph_argparse.py", line 690, in validate_one File "/usr/lib64/python2.7/site-packages/ceph_argparse.py", line 284, in valid ValueError: need more than 1 value to unpack [root@node-172-20-0-13 ~]# ceph --version ceph version 0.67.3 (408cd61584c72c0d97b774b3d8f95c6b1b06341a) [root@node-172-20-0-13 ~]# -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html