Re: Emergency! Production Cluster is down

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Hello Howie,

Is your cluster still down?

If you have a support contract with us please make sure to submit a support ticket so that our professional services team sees it.

If not, I'd suggest looking through the logs on the hosts that have remaining monitors and seeing if they say anything. You can also set "debug mon = 20" in your ceph.conf file and restart the mons to get more debugging info.

Mark

On 12/08/2013 12:39 AM, Mark Kirkwood wrote:
On 08/12/13 19:28, Howie C. wrote:
Hello Guys,

Tonight when I was trying to remove 2 monitors from the production
cluster, everything seems fine but all the sudden I cannot connect to
the cluster no more, showing
root@mon01:~# ceph mon dump
2013-12-07 22:24:57.693246 7f7ee21cc700  0 monclient(hunting):
authenticate timed out after 300
2013-12-07 22:24:57.693291 7f7ee21cc700  0 librados: client.admin
authentication error (110) Connection timed out
Error connecting to cluster: TimedOut

I tried to call Intank, but no ones there.

Any suggestions? Please help!


How many monitors did you have (before removing the 2)? Check that your
ceph.conf on the host where you are running the mon dump has them all
listed (otherwise use the -m switch to specify own you know is still
there)!

It might be that the remaining ones are just taking a few moments to
decide on a quorum.

Regards

Mark
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