Re: ceph-create-keys hung

[Abhay Sachan <abhaysac@xxxxxxxxx>]

Hi Joao,

Thanks for replying. All of my monitors are up and running and connected to each other. "ceph -s" is failing on the cluster with following error:

2013-10-07 10:12:25.099261 7fd1b948d700 -1 monclient(hunting): ERROR: missing keyring, cannot use cephx for authentication
2013-10-07 10:12:25.099271 7fd1b948d700  0 librados: client.admin initialization error (2) No such file or directory
Error connecting to cluster: ObjectNotFound

And the logs on each monitor has lots of entries like this:
NODE 1:

2013-10-07 03:58:51.153847 7ff2864c6700  0 mon.jul@0(probing).data_health(0) update_stats avail 76% total 42332700 used 7901820 avail 32280480
2013-10-07 03:59:51.154051 7ff2864c6700  0 mon.jul@0(probing).data_health(0) update_stats avail 76% total 42332700 used 7901832 avail 32280468
2013-10-07 04:00:51.154256 7ff2864c6700  0 mon.jul@0(probing).data_health(0) update_stats avail 76% total 42332700 used 7901828 avail 32280472

NODE 2:
2013-10-07 10:12:10.345491 7fa6145b0700  0 mon.dec@0(probing).data_health(0) update_stats avail 75% total 42332700 used 8199004 avail 31983296
2013-10-07 10:13:10.345677 7fa6145b0700  0 mon.dec@0(probing).data_health(0) update_stats avail 75% total 42332700 used 8199004 avail 31983296
2013-10-07 10:14:10.345921 7fa6145b0700  0 mon.dec@0(probing).data_health(0) update_stats avail 75% total 42332700 used 8199024 avail 31983276

NODE 3:

2013-10-07 10:13:00.880250 7fcd6459e700  0 mon.julilo@0(probing).data_health(0) update_stats avail 35% total 42332700 used 25105920 avail 150763802013-10-07 10:14:00.880470 7fcd6459e700  0 mon.julilo@0(probing).data_health(0) update_stats avail 35% total 42332700 used 25105924 avail 15076376
2013-10-07 10:15:00.880668 7fcd6459e700  0 mon.julilo@0(probing).data_health(0) update_stats avail 35% total 42332700 used 25105924 avail 15076376

If you need some other logs, then please tell me how to enable/fetch them. I will upload them someplace.

Regards,

Abhay

On Thu, Oct 3, 2013 at 8:31 PM, Joao Eduardo Luis <joao.luis@xxxxxxxxxxx> wrote:

On 10/03/2013 02:44 PM, Abhay Sachan wrote:

Hi All,
I have tried setting up a ceph cluster with 3 nodes (3 monitors). I am
using RHEL 6.4 as OS with dumpling(0.67.3) release. Ceph cluster
creation (using ceph-deploy as well as mkcephfs), ceph-creates-keys
doesn't return on any of the servers. Whereas, if I create a cluster
with only 1 node (1 monitor), key creation goes through. Has anybody
seen this problem or any ideas what I might be missing??

Regards,
Abhay

Those symptoms tell me that your monitors are not forming quorum. 'ceph-create-keys' needs the monitors to first establish a quorum, otherwise it will hang waiting for that to happen.

Please make sure all your monitors are running.  If so, try running 'ceph -s' on your cluster.  If that hangs as well, try accessing each monitor's admin socket to check what's happening [1].  If that too fails, try looking into the logs for something obviously wrong.  If you are not able to discern anything useful at that point, upload the logs to some place and point us to them -- we'll then be happy to take a look.

Hope this helps.

  -Joao

--
Joao Eduardo Luis
Software Engineer | http://inktank.com | http://ceph.com

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