Re: Ceph not responding after trying to add a new MON

[Karan Singh <ksingh@xxxxxx>]

Hello German

Can you check the following and let us know.

1. After you execute service ceph start , are the service getting started ?? what is the output of service ceph status

2. what does cehp status says

3. check on ceph-node02  what are things mounted.

Many Thanks
Karan Singh

---

From: "German Anders" <ganders@xxxxxxxxxxxx>
To: ceph-users@xxxxxxxxxxxxxx
Sent: Friday, 13 December, 2013 7:11:41 PM
Subject: Ceph not responding after trying to add a new MON

Hi to All,
            I've a situation where i can't run any "ceph" command on the cluster. Initially the cluster had only one MON daemon, with three OSD daemons running. Everything were ok, but someone from the team try to add a new MON daemon, and then when i try to start the ceph service I'm getting this error message (I've try it on every node):

root@ceph-node02:/tmp/ceph-node02# service ceph start
=== mon.ceph-node02 ===
Starting Ceph mon.ceph-node02 on ceph-node02...
failed: 'ulimit -n 32768;  /usr/bin/ceph-mon -i ceph-node02 --pid-file /var/run/ceph/mon.ceph-node02.pid -c /etc/ceph/ceph.conf '
Starting ceph-create-keys on ceph-node02...
INFO:ceph-disk:Activating /dev/disk/by-parttypeuuid/4fbd7e29-9d25-41b8-afd0-062c0ceff05d.dbf17a68-e94e-4dc7-bcc4-60263e4b0a7c
INFO:ceph-disk:ceph osd.0 already mounted in position; unmounting ours.

root@ceph-node01:/var/log/ceph# service ceph start
=== mon.ceph-node01 ===
Starting Ceph mon.ceph-node01 on ceph-node01...
failed: 'ulimit -n 32768;  /usr/bin/ceph-mon -i ceph-node01 --pid-file /var/run/ceph/mon.ceph-node01.pid -c /etc/ceph/ceph.conf '
Starting ceph-create-keys on ceph-node01...
INFO:ceph-disk:Activating /dev/disk/by-parttypeuuid/4fbd7e29-9d25-41b8-afd0-062c0ceff05d.fcf613c6-ae4a-4a44-b890-6d77dac3818b
INFO:ceph-disk:ceph osd.2 already mounted in position; unmounting ours.
root@ceph-node01:/var/log/ceph#

root@ceph-node03:~# service ceph start
INFO:ceph-disk:Activating /dev/disk/by-parttypeuuid/4fbd7e29-9d25-41b8-afd0-062c0ceff05d.7ba458b7-bd58-4373-b4b7-a0b1cffec548
INFO:ceph-disk:ceph osd.1 already mounted in position; unmounting ours.
root@ceph-node03:~#

The initial monitor was "ceph-node01".

Here's the /etc/ceph/ceph.conf file from the three nodes:

[global]
fsid = cd60ab37-23bd-4c17-9470-404cb3b31112
mon_initial_members = ceph-node01
mon_host = ceph-node01
auth_supported = cephx
osd_journal_size = 1024
filestore_xattr_use_omap = true

[mon.ceph-node01]
        host = ceph-node01
        mon addr = 10.111.82.242:6789

[mon.ceph-node02]
        host = ceph-node02
        mon aggr = 10.111.82.245:6789

Someone could point me out here to solve this issue?

Thanks in advance,

Best regards,

 

German Anders

 

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