Re: CEPHFS mount error !!!

[femi anjorin <femi.anjorin@gmail.com>]

Hi ... I am now testing cephfs on an ubuntu client before going back to centos.

A quick question about this command:
mount -t ceph 192.168.0.1:6789:/ /mnt/mycephfs -o
name=admin,secretfile=/etc/ceph/admin.secret ?
mount -t ceph 192.168.0.1:6789:/ /mnt/mycephfs -o
name=ceph,secretfile=/etc/ceph/ceph.keyring ?

Does it need admin.secret  or can i use ceph.keyring to mount with
cephfs file system?

Just a note: At the initial setup of the cluster i used:
mkcephfs -c /etc/ceph/ceph.conf --mkfs -a -k  /etc/ceph/ceph.keyring.

So i only have ceph.keyring NOT admin.secret ....


if i do:

#mount -t ceph 172.16.0.25:6789:/ /mnt/mycephfs
mount error 22 = Invalid argument
#dmesg
[ 7182.027665] libceph: client0 fsid 31c4d83e-cb0a-4fed-ab6f-581e8d5356f5
[ 7182.027715] libceph: no secret set (for auth_x protocol)
[ 7182.027719] libceph: error -22 on auth protocol 2 init


#mount -t ceph 172.16.0.25:6789:/ /mnt/mycephfs -o
name=ceph,secretfile=/etc/ceph/ceph.keyring
secret is not valid base64: Invalid argument.
adding ceph secret key to kernel failed: Invalid argument.
failed to parse ceph_options
#dmesg
[ 7639.377337] libceph: client0 fsid 31c4d83e-cb0a-4fed-ab6f-581e8d5356f5
[ 7639.378047] libceph: auth method 'x' error -1


Regards,
Femi







On Wed, Feb 6, 2013 at 4:29 PM, Dimitri Maziuk <dmaziuk@bmrb.wisc.edu> wrote:
> On 2/6/2013 5:54 AM, Dennis Jacobfeuerborn wrote:
> ...
>
>>> To mount cephfs like that you need to have kernel support. As the Linux
>>> kernel on CentOS 6.3 is version 2.6.32 and Ceph support wasn't added
>>> until
>>> 2.6.34, you need to compile your own kernel.
>>>
>>
>> The better alternative is probably to install a kernel from
>> http://elrepo.org/tiki/kernel-lt . "lt" stand for "long term" and should
>> be
>> fairly stable and "ml" is "mainline" which is even more current but
>> because
>> of that not quite as stable (currently 3.7.6).
>
>
> I had problems booting ml on some/most (dep. on the version) our machines,
> plus it's a pain to track: there's a new one every day.
>
> I do have lt running without problems and mounting cephfs, however, I
> haven't gotten around to the actual ceph testing on it yet so I can't say
> anything about ceph client's performance/stability on it. ("lt" is 3.0, as
> I
> understand it doesn't have the latest and greatest ceph module(?))
>
> Dimitri
>
>
> --
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