Re: "rbd map" says "bat option at rw"

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Hi Sage,

Just tried it, the behaviour disappears in version 0.72-rc1, so it seems you got it right. Thanks for the reply! I did not see any mention of that bug in the 0.70 or 0.71 release notes, though.

Keep up the good work. Best regards,

Nicolas Canceill
Scalable Storage Systems
SURFsara (Amsterdam, NL)



On 11/04/2013 11:27 AM, Sage Weil wrote:

I'm pretty sure this is the 'rw' mount option bug that Josh just fixed.  It affects kernels older than 3.7 or so and Ceoh newer than .70 or .71 (somewhere in there).  Can you try installing the package for the 'next' branch from gitbuilder.ceph.com?  If you are using ceph-deploy you can do

ceph-deploy install --dev=next HOST

Thanks!
sage



nicolasc <nicolas.canceill@xxxxxxxxxxx> wrote:
Hi Greg,

I apologize for the lack of details. To sum up, I check that my image 
exists:

$ rbd ls
img0
img1

Then I try to mount it:

$ sudo rbd map img0
rbd: add failed: (22) Invalid argument

When I try the exact same command from the box with version 0.61.9, it 
succeeds:

$ rbd ls
img0
img1
$ sudo rbd map img0
$ rbd showmapped
id pool image snap device
0  rbd  img0  -    /dev/rbd0

I have tried changing the data pool, the image format, the image size. I 
checked that the image was not locked, and not mounted anywhere else. I 
checked that the rbd kernel module was properly loaded, and I even tried 
from another box running 0.71 but I got the same error.

I would love to do more troubleshooting myself, but the "Invalid 
argument" error message does not give me much to start with. Any hint?

Best
regards,

Nicolas Canceill
Scalable Storage Systems
SURFsara (Amsterdam, NL)



On 11/01/2013 06:10 PM, Gregory Farnum wrote:
I think this will be easier to help with if you provide the exact command you're running. :) -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com On Fri, Nov 1, 2013 at 3:07 AM, nicolasc <nicolas.canceill@xxxxxxxxxxx> wrote:
Hi every one, I finally and happily managed to get my Ceph cluster (3 monitors among 8 nodes, each with 9 OSDs) running on version 0.71, but the "rbd map" command shows a weird behaviour. I can list pools, create images and snapshots, alleluia! However, mapping to a device with "rbd map" is not working. When I try this from one of my nodes, the kernel says: libceph: bad option at 'rw' Which "rbd" translates into: add failed: (22) Invalid argument Any idea of what that could indicate? I am using a basic config: no authentication, default crushmap (I just changed some weights), and basic network config (public net, cluster net). I have tried both image formats, different sizes and pools. Moreover, I have a client running rbd from Ceph version 0.61.9, and from there everything works fine with "rbd map" on the same image. Both nodes (Ceph 0.61.9 and 0.71) are running Linux kernel 3.2 for Debian. Hope you can provide some hints. Best regards, Nicolas Canceill Scalable Storage Systems SURFsara (Amsterdam, NL)
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