Comment 2 for bug 1662943

2017-02-08 09:14:17 INFO install update-initramfs: Generating /boot/initrd.img-3.13.0-108-generic
2017-02-08 09:14:34 INFO juju-log Application Version: 0.94.8
2017-02-08 09:14:35 DEBUG juju-log Hardening function 'install'
2017-02-08 09:14:35 DEBUG juju-log Hardening function 'config_changed'
2017-02-08 09:14:35 DEBUG juju-log Hardening function 'upgrade_charm'
2017-02-08 09:14:35 DEBUG juju-log Hardening function 'update_status'
2017-02-08 09:14:35 DEBUG juju-log No hardening applied to 'config_changed'
2017-02-08 09:14:35 INFO juju-log old_version: firefly
2017-02-08 09:14:35 INFO juju-log new_version: hammer
2017-02-08 09:14:35 INFO juju-log firefly to hammer is a valid upgrade path. Proceeding.
2017-02-08 09:14:35 INFO juju-log roll_osd_cluster called with hammer
2017-02-08 09:14:35 INFO config-changed Error initializing cluster client: Error('error calling conf_read_file: errno EINVAL',)
2017-02-08 09:14:35 INFO juju-log ceph osd tree command failed with message:
2017-02-08 09:14:35 INFO config-changed Traceback (most recent call last):
2017-02-08 09:14:35 INFO config-changed File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/config-changed", line 520, in <module>
2017-02-08 09:14:35 INFO config-changed hooks.execute(sys.argv)
2017-02-08 09:14:35 INFO config-changed File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/charmhelpers/core/hookenv.py", line 731, in execute
2017-02-08 09:14:35 INFO config-changed self._hooks[hook_name]()
2017-02-08 09:14:35 INFO config-changed File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/charmhelpers/contrib/hardening/harden.py", line 79, in _harden_inner2
2017-02-08 09:14:35 INFO config-changed return f(*args, **kwargs)
2017-02-08 09:14:35 INFO config-changed File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/config-changed", line 314, in config_changed
2017-02-08 09:14:35 INFO config-changed check_for_upgrade()
2017-02-08 09:14:35 INFO config-changed File "/var/lib/juju/agents/unit-ceph-osd-0/charm/hooks/config-changed", line 108, in check_for_upgrade
2017-02-08 09:14:35 INFO config-changed upgrade_key='osd-upgrade')
2017-02-08 09:14:35 INFO config-changed File "lib/ceph/__init__.py", line 1527, in roll_osd_cluster
2017-02-08 09:14:35 INFO config-changed osd_tree = get_osd_tree(service=upgrade_key)
2017-02-08 09:14:35 INFO config-changed File "lib/ceph/__init__.py", line 467, in get_osd_tree
2017-02-08 09:14:35 INFO config-changed 'osd', 'tree', '--format=json'])
2017-02-08 09:14:35 INFO config-changed File "/usr/lib/python2.7/subprocess.py", line 573, in check_output
2017-02-08 09:14:35 INFO config-changed raise CalledProcessError(retcode, cmd, output=output)
2017-02-08 09:14:35 INFO config-changed subprocess.CalledProcessError: Command '['ceph', '--id', 'osd-upgrade', 'osd', 'tree', '--format=json']' returned non-zero exit status 1
2017-02-08 09:14:35 ERROR juju.worker.uniter.operation runhook.go:107 hook "config-changed" failed: exit status 1