I try myself, use these command and recover to Health Ok now. But i do not know why were these command work, in my opinion , fail mds node first and rm failed mds node
root@ceph01-vm:~# ceph mds fail 0
failed mds.0
root@ceph01-vm:~# ceph -s
cluster 075f1aae-48de-412e-b024-b0f014dbc8cf
health HEALTH_ERR mds rank 0 has failed; mds cluster is degraded
monmap e2: 3 mons at {ceph01-vm=192.168.123.251:6789/0,ceph02-vm=192.168.123.252:6789/0,ceph04-vm=192.168.123.250:6789/0}, election epoch 128, quorum 0,1,2 ceph04-vm,ceph01-vm,ceph02-vm
mdsmap e68: 0/1/1 up, 1 failed
osdmap e588: 8 osds: 8 up, 8 in
pgmap v285967: 2392 pgs, 21 pools, 4990 MB data, 1391 objects
15173 MB used, 2768 GB / 2790 GB avail
2392 active+clean
root@ceph01-vm:~# ceph mds rm 0 mds.ceph06-vm
mds gid 0 dne
root@ceph01-vm:~# ceph -s
cluster 075f1aae-48de-412e-b024-b0f014dbc8cf
health HEALTH_ERR mds rank 0 has failed; mds cluster is degraded
monmap e2: 3 mons at {ceph01-vm=192.168.123.251:6789/0,ceph02-vm=192.168.123.252:6789/0,ceph04-vm=192.168.123.250:6789/0}, election epoch 128, quorum 0,1,2 ceph04-vm,ceph01-vm,ceph02-vm
mdsmap e69: 0/1/1 up, 1 failed
osdmap e588: 8 osds: 8 up, 8 in
pgmap v285970: 2392 pgs, 21 pools, 4990 MB data, 1391 objects
15173 MB used, 2768 GB / 2790 GB avail
2392 active+clean
root@ceph01-vm:~# ceph mds newfs 1 0 --yes-i-really-mean-it
filesystem 'cephfs' already exists
root@ceph01-vm:~# ceph -s
cluster 075f1aae-48de-412e-b024-b0f014dbc8cf
health HEALTH_ERR mds rank 0 has failed; mds cluster is degraded
monmap e2: 3 mons at {ceph01-vm=192.168.123.251:6789/0,ceph02-vm=192.168.123.252:6789/0,ceph04-vm=192.168.123.250:6789/0}, election epoch 128, quorum 0,1,2 ceph04-vm,ceph01-vm,ceph02-vm
mdsmap e70: 0/1/1 up, 1 failed
osdmap e588: 8 osds: 8 up, 8 in
pgmap v285973: 2392 pgs, 21 pools, 4990 MB data, 1391 objects
15173 MB used, 2768 GB / 2790 GB avail
2392 active+clean
root@ceph01-vm:~# ceph mds rmfailed 0
root@ceph01-vm:~# ceph -s
cluster 075f1aae-48de-412e-b024-b0f014dbc8cf
health HEALTH_OK
monmap e2: 3 mons at {ceph01-vm=192.168.123.251:6789/0,ceph02-vm=192.168.123.252:6789/0,ceph04-vm=192.168.123.250:6789/0}, election epoch 128, quorum 0,1,2 ceph04-vm,ceph01-vm,ceph02-vm
mdsmap e71: 0/1/1 up
osdmap e588: 8 osds: 8 up, 8 in
pgmap v286028: 2392 pgs, 21 pools, 4990 MB data, 1391 objects
15174 MB used, 2768 GB / 2790 GB avail
2392 active+clean
2015-01-05 15:03 GMT+07:00 debian Only <onlydebian@xxxxxxxxx>:
i use 0.87, in side ceph.conf, do not have mds.0 related configi didroot@ceph06-vm:~# ceph mds rm 0 mds.ceph06-vmmds gid 0 dne2015-01-05 11:15 GMT+07:00 Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx>:Did you remove the mds.0 entry from ceph.conf?--On 5 January 2015 at 14:13, debian Only <onlydebian@xxxxxxxxx> wrote:i have tried ' ceph mds newfs 1 0 --yes-i-really-mean-it' but not fix the problem2014-12-30 17:42 GMT+07:00 Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx>:_______________________________________________On Tue, 30 Dec 2014 03:11:25 PM debian Only wrote:
> ceph 0.87 , Debian 7.5, anyone can help ?
>
> 2014-12-29 20:03 GMT+07:00 debian Only <onlydebian@xxxxxxxxx>:
> i want to move mds from one host to another.
>
> how to do it ?
>
> what did i do as below, but ceph health not ok, mds was not removed :
>
> root@ceph06-vm:~# ceph mds rm 0 mds.ceph06-vm
> mds gid 0 dne
>
> root@ceph06-vm:~# ceph health detail
> HEALTH_WARN mds ceph06-vm is laggy
> mds.ceph06-vm at 192.168.123.248:6800/4350 is laggy/unresponsive
I removed an mds using this guide:
http://www.sebastien-han.fr/blog/2012/07/04/remove-a-mds-server-from-a-ceph-cluster/
and ran into your problem, which is also mentioned there.
resolved it using the guide suggestion:
$ ceph mds newfs metadata data --yes-i-really-mean-it
--
Lindsay
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
Lindsay
_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
