Re: Cannot Create MGR

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Indeed John,

you are right! I have updated "ceph-deploy" (which was installed via "pip" that's why wasn't updated with the rest ceph packages) but now it complaints that keys are missing

$ ceph-deploy mgr create controller
[ceph_deploy.conf][DEBUG ] found configuration file at: /home/user/.cephdeploy.conf [ceph_deploy.cli][INFO ] Invoked (2.0.0): /usr/bin/ceph-deploy mgr create controller
[ceph_deploy.cli][INFO  ] ceph-deploy options:
[ceph_deploy.cli][INFO  ]  username                      : None
[ceph_deploy.cli][INFO  ]  verbose                       : False
[ceph_deploy.cli][INFO ] mgr : [('controller', 'controller')]
[ceph_deploy.cli][INFO  ]  overwrite_conf                : False
[ceph_deploy.cli][INFO  ]  subcommand                    : create
[ceph_deploy.cli][INFO  ]  quiet                         : False
[ceph_deploy.cli][INFO ] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0x1d42bd8>
[ceph_deploy.cli][INFO  ]  cluster                       : ceph
[ceph_deploy.cli][INFO ] func : <function mgr at 0x1cce500>
[ceph_deploy.cli][INFO  ]  ceph_conf                     : None
[ceph_deploy.cli][INFO  ]  default_release               : False
[ceph_deploy.mgr][DEBUG ] Deploying mgr, cluster ceph hosts controller:controller [ceph_deploy][ERROR ] RuntimeError: bootstrap-mgr keyring not found; run 'gatherkeys'


and I cannot get the keys...



$ ceph-deploy gatherkeys controller
[ceph_deploy.conf][DEBUG ] found configuration file at: /home/user/.cephdeploy.conf [ceph_deploy.cli][INFO ] Invoked (2.0.0): /usr/bin/ceph-deploy gatherkeys controller
[ceph_deploy.cli][INFO  ] ceph-deploy options:
[ceph_deploy.cli][INFO  ]  username                      : None
[ceph_deploy.cli][INFO  ]  verbose                       : False
[ceph_deploy.cli][INFO  ]  overwrite_conf                : False
[ceph_deploy.cli][INFO  ]  quiet                         : False
[ceph_deploy.cli][INFO ] cd_conf : <ceph_deploy.conf.cephdeploy.Conf instance at 0x199f290>
[ceph_deploy.cli][INFO  ]  cluster                       : ceph
[ceph_deploy.cli][INFO ] mon : ['controller'] [ceph_deploy.cli][INFO ] func : <function gatherkeys at 0x198b2a8>
[ceph_deploy.cli][INFO  ]  ceph_conf                     : None
[ceph_deploy.cli][INFO  ]  default_release               : False
[ceph_deploy.gatherkeys][INFO ] Storing keys in temp directory /tmp/tmpPQ895t
[controller][DEBUG ] connection detected need for sudo
[controller][DEBUG ] connected to host: controller
[controller][DEBUG ] detect platform information from remote host
[controller][DEBUG ] detect machine type
[controller][DEBUG ] get remote short hostname
[controller][DEBUG ] fetch remote file
[ceph_deploy.gatherkeys][WARNIN] No mon key found in host: controller
[ceph_deploy.gatherkeys][ERROR ] Failed to connect to host:controller
[ceph_deploy.gatherkeys][INFO  ] Destroy temp directory /tmp/tmpPQ895t
[ceph_deploy][ERROR ] RuntimeError: Failed to connect any mon




On Wed, Feb 28, 2018 at 5:21 PM, Georgios Dimitrakakis
<giorgis@xxxxxxxxxxxx> wrote:
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')

You probably have an older version of ceph-deploy, from before it knew
how to create mgr daemons.

John



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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