All,
I have updated my test ceph cluster from Jewer (10.2.10) to Luminous
(12.2.4) using CentOS packages.
I have updated all packages, restarted all services with the proper
order but I get a warning that the Manager Daemon doesn't exist.
Here is the output:
# ceph -s
cluster:
id: d357a551-5b7a-4501-8d8f-009c63b2c972
health: HEALTH_WARN
no active mgr
services:
mon: 1 daemons, quorum controller
mgr: no daemons active
osd: 2 osds: 2 up, 2 in
data:
pools: 0 pools, 0 pgs
objects: 0 objects, 0 bytes
usage: 0 kB used, 0 kB / 0 kB avail
pgs:
While at the same time the system service is up and running
# systemctl status ceph-mgr.target
● ceph-mgr.target - ceph target allowing to start/stop all
ceph-mgr@.service instances at once
Loaded: loaded (/usr/lib/systemd/system/ceph-mgr.target; enabled;
vendor preset: enabled)
Active: active since Wed 2018-02-28 18:57:13 EET; 12min ago
I understand that I have to add a new MGR but when I try to do it via
"ceph-deploy" it fails with the following error:
# ceph-deploy mgr create controller
usage: ceph-deploy [-h] [-v | -q] [--version] [--username USERNAME]
[--overwrite-conf] [--cluster NAME] [--ceph-conf
CEPH_CONF]
COMMAND ...
ceph-deploy: error: argument COMMAND: invalid choice: 'mgr' (choose
from 'new', 'install', 'rgw', 'mon', 'mds', 'gatherkeys', 'disk', 'osd',
'admin', 'repo', 'config', 'uninstall', 'purge', 'purgedata',
'calamari', 'forgetkeys', 'pkg')
where "controller" is the node where ceph monitor is already running.
Any ideas why I cannot do it via "ceph-deploy" and what do I have to do
to have it back in a healthy state?
I am running CentOS 7.4.1708 (Core).
Best,
G.
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