On Fri, Jul 4, 2014 at 11:48 AM, Xabier Elkano <xelkano at hostinet.com> wrote:
> Hi,
>
> I am trying to map a rbd device in Ubuntu 14.04 (kernel 3.13.0-30-generic):
>
> # rbd -p mypool create test1 --size 500
>
> # rbd -p mypool ls
> test1
>
> # rbd -p mypool map test1
> rbd: add failed: (5) Input/output error
>
> and in the syslog:
> Jul 4 09:31:48 testceph kernel: [70503.356842] libceph: mon2
> 172.16.64.18:6789 feature set mismatch, my 4a042a42 < server's
> 2004a042a42, missing 20000000000
> Jul 4 09:31:48 testceph kernel: [70503.356938] libceph: mon2
> 172.16.64.18:6789 socket error on read
>
>
> my environment:
>
> cluster version on all MONs and OSDs is 0.80.1
> In the client machine:
>
> ii ceph-common 0.80.1-1trusty
> amd64 common utilities to mount and interact with a ceph storage
> cluster
> ii python-ceph 0.80.1-1trusty
> amd64 Python libraries for the Ceph distributed filesystem
> ii librados2 0.80.1-1trusty
> amd64 RADOS distributed object store client library
>
> I think I started getting this error when I switched from tunables
> legacy to optimal after upgrading from 0.72 to 0.80.
Hi Xabier,
You need to do
ceph osd getcrushmap -o /tmp/crush
crushtool -i /tmp/crush --set-chooseleaf_vary_r 0 -o /tmp/crush.new
ceph osd setcrushmap -i /tmp/crush.new
or upgrade your kernel to 3.15.
Thanks,
Ilya
