Hi Sonal,
You can refer to this doc to identify your problem.
Your error code is 42040000, so
* 40000000 upgrade to kernel 3.9
* 2000000 CEPH_FEATURE_CRUSH_TUNABLES2
* 40000 CEPH_FEATURE_CRUSH_TUNABLES
*
http://ceph.com/planet/feature-set-mismatch-error-on-ceph-kernel-client/
Stephane.
----- Mail original -----
> Hi,
> I am newbie for ceph, and ceph-user group. Recently I have been working on a
> ceph client. It worked on all the environments while when i tested on the
> production, it is not able to connect to ceph.
> Following are the operating system details and error. If someone has seen
> this problem before, any help is really appreciated.
> OS -
> lsb_release -a
> No LSB modules are available.
> Distributor ID: Ubuntu
> Description: Ubuntu 12.04.2 LTS
> Release: 12.04
> Codename: precise
> 2015-03-05 13:37:16.816322 7f5191deb700 -- 10.8.25.112:0/2487 >>
> 10.138.23.241:6789/0 pipe(0x12489f0 sd=3 pgs=0 cs=0 l=0).connect protocol
> feature mismatch, my 1ffa < peer 42041ffa missing 42040000
> 2015-03-05 13:37:17.635776 7f5191deb700 -- 10.8.25.112:0/2487 >>
> 10.138.23.241:6789/0 pipe(0x12489f0 sd=3 pgs=0 cs=0 l=0).connect protocol
> feature mismatch, my 1ffa < peer 42041ffa missing 42040000
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> ceph-users@lists.ceph.com
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