Re: Continuous error: "libceph: monX session lost, hunting for new mon" on one host

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Hello Marco,

On Mon, Oct 23, 2017 at 05:48:10PM +0200, Marco Baldini - H.S. Amiata wrote:
> Hello
>
> ceph-mon services do not restart in any node, yesterday I manually restarted
> ceph-mon and ceph-mgr on every node and since them they did not restart
>
> *pve-hs-2$ systemctl status ceph-mon@pve-hs-2.service*
>  ceph-mon@pve-hs-2.service - Ceph cluster monitor daemon
>    Loaded: loaded (/lib/systemd/system/ceph-mon@.service; enabled; vendor preset: enabled)
>   Drop-In: /lib/systemd/system/ceph-mon@.service.d
>            └─ceph-after-pve-cluster.conf
>    Active:*active (running) since Sun 2017-10-22 12:04:22 CEST; 1 day 5h ago*
>  Main PID: 24825 (ceph-mon)
>     Tasks: 23
>    CGroup: /system.slice/system-ceph\x2dmon.slice/ceph-mon@pve-hs-2.service
>            └─24825 /usr/bin/ceph-mon -f --cluster ceph --id pve-hs-2 --setuser ceph --setgroup ceph
>
> Oct 22 12:04:22 pve-hs-2 systemd[1]: Stopped Ceph cluster monitor daemon.
> Oct 22 12:04:22 pve-hs-2 systemd[1]: Started Ceph cluster monitor daemon.
>
> *pve-hs-main$ systemctl status ceph-mon@pve-hs-main.service*
>  ceph-mon@pve-hs-main.service - Ceph cluster monitor daemon
>    Loaded: loaded (/lib/systemd/system/ceph-mon@.service; enabled; vendor preset: enabled)
>   Drop-In: /lib/systemd/system/ceph-mon@.service.d
>            └─ceph-after-pve-cluster.conf
>    Active:*active (running) since Sun 2017-10-22 12:08:59 CEST; 1 day 5h ago*
>  Main PID: 24857 (ceph-mon)
>    CGroup: /system.slice/system-ceph\x2dmon.slice/ceph-mon@pve-hs-main.service
>            └─24857 /usr/bin/ceph-mon -f --cluster ceph --id pve-hs-main --setuser ceph --setgroup ceph
>
> Oct 22 12:08:59 pve-hs-main systemd[1]: Started Ceph cluster monitor daemon.
>
> *pve-hs-3$ systemctl status ceph-mon@pve-hs-3.service*
>  ceph-mon@pve-hs-3.service - Ceph cluster monitor daemon
>    Loaded: loaded (/lib/systemd/system/ceph-mon@.service; enabled; vendor preset: enabled)
>   Drop-In: /lib/systemd/system/ceph-mon@.service.d
>            └─ceph-after-pve-cluster.conf
>    Active:*active (running) since Sun 2017-10-22 12:07:43 CEST; 1 day 5h ago*
>  Main PID: 13077 (ceph-mon)
>     Tasks: 23
>    CGroup: /system.slice/system-ceph\x2dmon.slice/ceph-mon@pve-hs-3.service
>            └─13077 /usr/bin/ceph-mon -f --cluster ceph --id pve-hs-3 --setuser ceph --setgroup ceph
>
>
> At 17:28 I have this in syslog / journal of pve-hs-2
>
> Oct 23 17:38:47 pve-hs-2 kernel: [255282.309979] libceph: mon1 10.10.10.252:6789 session lost, hunting for new mon
>
> On same node, my ceph-mon.pve-hs-2.log at 17:38 is
> https://pastebin.com/8BCUm5Mr
>
> Thanks
>
>
>
>
> Il 23/10/2017 16:26, Alwin Antreich ha scritto:
> > Does the ceph-mon services restart when the session is lost?
> > What do you see in the ceph-mon.log on the failing mon node?
> >
> > --
> > Cheers,
> > Alwin
> >
> > _______________________________________________
> > 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
What is in the other ceph/syslog log files? Please also check your
dmesg, maybe there is something with your bond/LACP.

--
Cheers,
Alwin

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