Re: ceph-mon not starting on boot with systemd and Ubuntu 16.04

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What about systemctl is-enabled ceph-mon.target?

Jan



> On 12 May 2016, at 15:01, Wido den Hollander <wido@xxxxxxxx> wrote:
> 
> 
> To also answer Sage's question: No, this is a fresh Jewel install in a few test VMs. This system was not upgraded.
> 
> It was installed 2 hours ago.
> 
>> Op 12 mei 2016 om 14:51 schreef Jan Schermer <jan@xxxxxxxxxxx>:
>> 
>> 
>> Can you post the contents of ceph-mon@.service file?
>> 
> 
> Yes, here you go:
> 
> root@charlie:~# cat /lib/systemd/system/ceph-mon@.service 
> [Unit]
> Description=Ceph cluster monitor daemon
> 
> # According to:
> #   http://www.freedesktop.org/wiki/Software/systemd/NetworkTarget
> # these can be removed once ceph-mon will dynamically change network
> # configuration.
> After=network-online.target local-fs.target ceph-create-keys@%i.service
> Wants=network-online.target local-fs.target ceph-create-keys@%i.service
> 
> PartOf=ceph-mon.target
> 
> [Service]
> LimitNOFILE=1048576
> LimitNPROC=1048576
> EnvironmentFile=-/etc/default/ceph
> Environment=CLUSTER=ceph
> ExecStart=/usr/bin/ceph-mon -f --cluster ${CLUSTER} --id %i --setuser ceph --setgroup ceph
> ExecReload=/bin/kill -HUP $MAINPID
> PrivateDevices=yes
> ProtectHome=true
> ProtectSystem=full
> PrivateTmp=true
> TasksMax=infinity
> Restart=on-failure
> StartLimitInterval=30min
> StartLimitBurst=3
> 
> [Install]
> WantedBy=ceph-mon.target
> root@charlie:~#
> 
>> what does
>> systemctl is-enabled ceph-mon@charlie
>> say?
>> 
> 
> root@charlie:~# systemctl is-enabled ceph-mon@charlie
> enabled
> root@charlie:~#
> 
>> However, this looks like it was just started at a bad moment and died - nothing in logs?
>> 
> 
> No, I checked the ceph-mon logs in /var/log/ceph. No sign of it even trying to start after boot. In /var/log/syslog there also is not a trace of ceph-mon.
> 
> Only the OSD starts.
> 
> Wido
> 
>> Jan
>> 
>> 
>>> On 12 May 2016, at 14:44, Sage Weil <sage@xxxxxxxxxxxx> wrote:
>>> 
>>> On Thu, 12 May 2016, Wido den Hollander wrote:
>>>> Hi,
>>>> 
>>>> I am setting up a Jewel cluster in VMs with Ubuntu 16.04.
>>>> 
>>>> ceph version 10.2.0 (3a9fba20ec743699b69bd0181dd6c54dc01c64b9)
>>>> 
>>>> After a reboot the Ceph Monitors don't start and I have to do so manually.
>>>> 
>>>> Three machines, alpha, bravo and charlie all have the same problem.
>>>> 
>>>> root@charlie:~# systemctl status ceph-mon@charlie
>>>> ● ceph-mon@charlie.service - Ceph cluster monitor daemon
>>>>  Loaded: loaded (/lib/systemd/system/ceph-mon@.service; enabled; vendor preset: enabled)
>>>>  Active: inactive (dead)
>>>> root@charlie:~#
>>>> 
>>>> I can start it and it works
>>> 
>>> Hmm.. my systemd-fu is weak, but if it's enabled it seems like it shoud 
>>> come up.
>>> 
>>> Was this an upgraded package?  What if you do 'systemctl reenable 
>>> ceph-mon@charlie'?
>>> 
>>> sage
>>> 
>>> 
>>> 
>>>> 
>>>> root@charlie:~# systemctl start ceph-mon@charlie
>>>> root@charlie:~# systemctl status ceph-mon@charlie
>>>> ● ceph-mon@charlie.service - Ceph cluster monitor daemon
>>>>  Loaded: loaded (/lib/systemd/system/ceph-mon@.service; enabled; vendor preset: enabled)
>>>>  Active: active (running) since Thu 2016-05-12 16:08:56 CEST; 1s ago
>>>> Main PID: 1368 (ceph-mon)
>>>> 
>>>> I tried removing the /var/log/ceph/ceph-mon.charlie.log file and reboot to see if the mon was actually invoked, but it wasn't.
>>>> 
>>>> ceph.target has been started and so is the OSD on the machine. It is just the monitor which hasn't been started.
>>>> 
>>>> In the syslog I see:
>>>> 
>>>> May 12 16:11:19 charlie systemd[1]: Starting Ceph object storage daemon...
>>>> May 12 16:11:19 charlie systemd[1]: Starting LSB: Start Ceph distributed file system daemons at boot time...
>>>> May 12 16:11:19 charlie systemd[1]: Started LSB: Start Ceph distributed file system daemons at boot time.
>>>> May 12 16:11:20 charlie systemd[1]: Started Ceph object storage daemon.
>>>> May 12 16:11:20 charlie systemd[1]: Started Ceph disk activation: /dev/sdb2.
>>>> May 12 16:11:21 charlie systemd[1]: Started Ceph object storage daemon.
>>>> May 12 16:11:21 charlie systemd[1]: Started Ceph disk activation: /dev/sdb1.
>>>> 
>>>> Am I missing something or is this a bug?
>>>> 
>>>> Wido
>>>> _______________________________________________
>>>> ceph-users mailing list
>>>> ceph-users@xxxxxxxxxxxxxx
>>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>>> _______________________________________________
>>> ceph-users mailing list
>>> ceph-users@xxxxxxxxxxxxxx
>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>> 

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