Hi,
On 11/13/2014 06:05 PM, Artem Silenkov wrote:
Hello!

Only 1 monitor instance? It won't work at most cases.
Make more and ensure quorum to reach survivalability.

No, three monitor instances, one for each ceph-node. As designed into the
quick-ceph-deploy.

I tried to kill one of them (the initial monitor) to see what happens and happens that.
:-(
Ciaoo

    Luca

Regards, Silenkov Artem
---
artem.silen...@gmail.com <mailto:artem.silen...@gmail.com>

2014-11-13 20:02 GMT+03:00 Luca Mazzaferro <luca.mazzafe...@rzg.mpg.de <mailto:luca.mazzafe...@rzg.mpg.de>>:

    Dear Users,
    I followed the instruction of the storage cluster quick start here:

    http://ceph.com/docs/master/start/quick-ceph-deploy/

    I simulate a little storage with 4 VMs ceph-node[1,2,3] and an
    admin-node.
    Everything worked fine until I shut down the initial monitor node
    (ceph-node1).

    Also with the other monitors on.

    I restart the ceph-node1 but the ceph command (running from
    ceph-admin) fails after hanging for 5 minutes.
    with this exit code:
    2014-11-13 17:33:31.711410 7f6a5b1af700  0 monclient(hunting):
    authenticate timed out after 300
    2014-11-13 17:33:31.711522 7f6a5b1af700  0 librados: client.admin
    authentication error (110) Connection timed out

    If I go to the ceph-node1 and restart the services:

    [root@ceph-node1 ~]# service ceph status
    === mon.ceph-node1 ===
    mon.ceph-node1: running {"version":"0.80.7"}
    === osd.2 ===
    osd.2: not running.
    === mds.ceph-node1 ===
    mds.ceph-node1: running {"version":"0.80.7"}
    [root@ceph-node1 ~]# service ceph status
    === mon.ceph-node1 ===
    mon.ceph-node1: running {"version":"0.80.7"}
    === osd.2 ===
    osd.2: not running.
    === mds.ceph-node1 ===
    mds.ceph-node1: running {"version":"0.80.7"}

    I don't understand how to properly restart a node.
    Can anyone help me?
    Thank you.
    Cheers.

        Luca





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