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

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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

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