Hi Alwin,
thanks for your advise. But no success. Still same error.
mds-section:
[mds.1]
host = scvirt03
keyring = /var/lib/ceph/mds/ceph-scvirt03/keyring
Vadim
On 07.08.2018 15:30, Alwin Antreich wrote:
Hello Vadim,
On Tue, Aug 7, 2018, 12:13 Vadim Bulst <vadim.bu...@bbz.uni-leipzig.de>
wrote:
Dear list,
I'm trying to bring up a second mds with no luck.
This is what my ceph.conf looks like:
[global]
auth client required = cephx
auth cluster required = cephx
auth service required = cephx
cluster network = 10.10.144.0/24
filestore xattr use omap = true
fsid = 5349724e-fa96-4fd6-8e44-8da2a39253f7
keyring = /etc/pve/priv/$cluster.$name.keyring
osd journal size = 5120
osd pool default min size = 1
public network = 172.18.144.0/24
mon allow pool delete = true
[osd]
keyring = /var/lib/ceph/osd/ceph-$id/keyring
[mon.2]
host = scvirt03
mon addr = 172.18.144.243:6789
[mon.0]
host = scvirt01
mon addr = 172.18.144.241:6789
[mon.1]
host = scvirt02
mon addr = 172.18.144.242:6789
[mds.0]
host = scvirt02
[mds.1]
host = scvirt03
I did the following to set up the service:
apt install ceph-mds
mkdir /var/lib/ceph/mds
mkdir /var/lib/ceph/mds/ceph-$(hostname -s)
chown -R ceph:ceph /var/lib/ceph/mds
chmod -R 0750 /var/lib/ceph/mds
ceph auth get-or-create mds.$(hostname -s) mon 'allow profile mds' mgr
'allow profile mds' osd 'allow rwx' mds 'allow' >
/var/lib/ceph/mds/ceph-$(hostname -s)/keyring
chmod -R 0600 /var/lib/ceph/mds/ceph-$(hostname -s)/keyring
systemctl enable ceph-mds@$(hostname -s).service
systemctl start ceph-mds@$(hostname -s).service
The service will not start. I also did the same procedure with the first
mds which is running with no problems.
1st mds:
root@scvirt02:/home/urzadmin# systemctl status -l ceph-mds@$(hostname
-s).service
● ceph-mds@scvirt02.service - Ceph metadata server daemon
Loaded: loaded (/lib/systemd/system/ceph-mds@.service; enabled;
vendor preset: enabled)
Drop-In: /lib/systemd/system/ceph-mds@.service.d
└─ceph-after-pve-cluster.conf
Active: active (running) since Thu 2018-06-07 13:08:58 CEST; 2
months 0 days ago
Main PID: 612704 (ceph-mds)
CGroup:
/system.slice/system-ceph\x2dmds.slice/ceph-mds@scvirt02.service
└─612704 /usr/bin/ceph-mds -f --cluster ceph --id scvirt02
--setuser ceph --setgroup ceph
Jul 29 06:25:01 scvirt02 ceph-mds[612704]: 2018-07-29 06:25:01.792601
7f6e4bae0700 -1 received signal: Hangup from PID: 3831071 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Jul 30 06:25:02 scvirt02 ceph-mds[612704]: 2018-07-30 06:25:02.081591
7f6e4bae0700 -1 received signal: Hangup from PID: 184355 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Jul 31 06:25:01 scvirt02 ceph-mds[612704]: 2018-07-31 06:25:01.448571
7f6e4bae0700 -1 received signal: Hangup from PID: 731440 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Aug 01 06:25:01 scvirt02 ceph-mds[612704]: 2018-08-01 06:25:01.274541
7f6e4bae0700 -1 received signal: Hangup from PID: 1278492 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Aug 02 06:25:02 scvirt02 ceph-mds[612704]: 2018-08-02 06:25:02.009054
7f6e4bae0700 -1 received signal: Hangup from PID: 1825500 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Aug 03 06:25:02 scvirt02 ceph-mds[612704]: 2018-08-03 06:25:02.042845
7f6e4bae0700 -1 received signal: Hangup from PID: 2372815 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Aug 04 06:25:01 scvirt02 ceph-mds[612704]: 2018-08-04 06:25:01.404619
7f6e4bae0700 -1 received signal: Hangup from PID: 2919837 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Aug 05 06:25:01 scvirt02 ceph-mds[612704]: 2018-08-05 06:25:01.214749
7f6e4bae0700 -1 received signal: Hangup from PID: 3467000 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Aug 06 06:25:01 scvirt02 ceph-mds[612704]: 2018-08-06 06:25:01.149512
7f6e4bae0700 -1 received signal: Hangup from PID: 4014197 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
Aug 07 06:25:01 scvirt02 ceph-mds[612704]: 2018-08-07 06:25:01.863104
7f6e4bae0700 -1 received signal: Hangup from PID: 367698 task name:
killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw UID: 0
2nd mds:
root@scvirt03:/home/urzadmin# systemctl status -l ceph-mds@$(hostname
-s).service
● ceph-mds@scvirt03.service - Ceph metadata server daemon
Loaded: loaded (/lib/systemd/system/ceph-mds@.service; enabled;
vendor preset: enabled)
Drop-In: /lib/systemd/system/ceph-mds@.service.d
└─ceph-after-pve-cluster.conf
Active: inactive (dead) since Tue 2018-08-07 10:27:18 CEST; 1h
38min ago
Process: 3620063 ExecStart=/usr/bin/ceph-mds -f --cluster ${CLUSTER}
--id scvirt03 --setuser ceph --setgroup ceph (code=exited,
status=0/SUCCESS)
Main PID: 3620063 (code=exited, status=0/SUCCESS)
Aug 07 10:27:17 scvirt03 systemd[1]: Started Ceph metadata server daemon.
Aug 07 10:27:18 scvirt03 ceph-mds[3620063]: starting mds.scvirt03 at -
Aug 07 10:27:18 scvirt03 ceph-mds[3620063]: 2018-08-07 10:27:18.008338
7f6be03816c0 -1 auth: unable to find a keyring on
/etc/pve/priv/ceph.mds.scvirt03.keyring: (13) Permission denied
Aug 07 10:27:18 scvirt03 ceph-mds[3620063]: 2018-08-07 10:27:18.008351
7f6be03816c0 -1 mds.scvirt03 ERROR: failed to get monmap: (13)
Permission denied
content of /etc/pve/priv
root@scvirt03:/home/urzadmin# ls -la /etc/pve/priv/
total 5
drwx------ 2 root www-data 0 Apr 15 2017 .
drwxr-xr-x 2 root www-data 0 Jan 1 1970 ..
-rw------- 1 root www-data 1675 Apr 15 2017 authkey.key
-rw------- 1 root www-data 1976 Jul 6 15:41 authorized_keys
drwx------ 2 root www-data 0 Apr 16 2017 ceph
-rw------- 1 root www-data 63 Apr 15 2017 ceph.client.admin.keyring
-rw------- 1 root www-data 214 Apr 15 2017 ceph.mon.keyring
-rw------- 1 root www-data 4224 Jul 6 15:41 known_hosts
drwx------ 2 root www-data 0 Apr 15 2017 lock
-rw------- 1 root www-data 3243 Apr 15 2017 pve-root-ca.key
-rw------- 1 root www-data 3 Jul 6 15:41 pve-root-ca.srl
-rw------- 1 root www-data 36 May 23 13:03 urzbackup.cred
What could be the reason this failure?
The ceph user has no permissions to access the the keyring under /etc/pve.
Add a section for [mds] into the ceph.conf pointing to the keyring, similar
to the OSD one. This way the MDS will find the key in It's working
directory.
Cheers,
Alwin
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