Hi Atish,
The default replication number of ceph is 2. Thus, If you have only
one node (osd) in your cluster, all pg/objects are surely in degraded
state.
As to the problem that you cannot put/get objects, I guess it's
because of the re-mkcephfs issue Tommi mentioned.
Henry
2011/11/4 Atish Kathpal <atish.kathpal@xxxxxxxxx>:
> On Thu, Nov 3, 2011 at 10:38 PM, Tommi Virtanen
> <tommi.virtanen@xxxxxxxxxxxxx> wrote:
>> On Wed, Nov 2, 2011 at 23:58, Atish Kathpal <atish.kathpal@xxxxxxxxx> wrote:
>>> Moreover, I am also unable to create new objects and/or get/put the
>>> degraded objects. I re-ran mkcephfs after my reboot.
>>
>> Well, if you re-ran mkcephfs, that wiped out your old data, so your
>> earlier question is now moot. Did you shutdown all the daemons first
>> before mkcephfs? If not, expect them to be broken now. It's hard to
>> guess what the state of your system is now; perhaps the easiest path
>> out is to shut down all the daemons, remove all the ceph data ("osd
>> data" and "mon data" dirs in ceph.conf), re-run mkcephfs, see that
>> "ceph health" says ok, and then try the "rados" command again.
>>
>
> Thanks for the insights. Yes, I guess I did too many things after the
> reboot, including re-starting the daemons and the re-running mkcephfs.
> So from your reply I understand that a system reboot would have done
> nothing to my RADOS objects, it was the re-running of mkcephfs that
> degraded my objects. Right?
>
> I am able to use "rados" command again, I independently performed some
> of the steps you have also mentioned. I have understandably lost all
> my old object though.
>
> Thanks
> Atish
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