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[Travis Rhoden <trhoden@xxxxxxxxx>]

Was this problem ever resolved?  I'm having the identical issue right now
(perhaps because I am following Sebastien's guide [0]).  I found this
question raised on LP [1], but no helpful responses, and no linked bug.  I
can confirm that I can attach an RBD instance manually through virsh, no
problem. So it is not a libvirt thing.  It sure appears to be a faulty disk
attachment definition from OpenStack.

I'm running the latest packages on Ubuntu 12.04 for OpensStack (essex) and
Ceph (argonaut).

I can confirm when using nova volume-attach it does not matter what device
you pick, dev/vdb, dev/vdf, whatever.  Always fails.  /dev/vdb manually
works great.

[0]
http://www.sebastien-han.fr/blog/2012/06/10/introducing-ceph-to-openstack/
[1] https://answers.launchpad.net/nova/+question/201366

 - Travis

On Fri, May 25, 2012 at 8:32 PM, Josh Durgin <josh.durgin@xxxxxxxxxxx>wrote:

> On 05/25/2012 01:31 AM, Sébastien Han wrote:
>
>> Hi everyone,
>>
>> I setup a ceph cluster and I use the RBD driver for nova-volume.
>> I can create volumes and snapshots but currently I can't attach them to
>> an instance.
>> Apparently the volume is detected as busy but it's not, no matter which
>> name I choose.
>> I tried from horizon and the command line, same issue.
>>
>> $ nova --debug volume-attach de3743be-69be-4ec3-8de3-**fc7df6903a97 12
>> /dev/vdc
>> connect: (localhost, 5000)
>> send: 'POST /v2.0/tokens HTTP/1.1\r\nHost:
>> localhost:5000\r\nContent-**Length: 100\r\ncontent-type:
>> application/json\r\naccept-**encoding: gzip, deflate\r\naccept:
>> application/json\r\nuser-**agent: python-novaclient\r\n\r\n{"**auth":
>> {"tenantName": "admin", "passwordCredentials": {"username": "admin",
>> "password": "admin"}}}'
>> reply: 'HTTP/1.1 200 OK\r\n'
>> header: Content-Type: application/json
>> header: Vary: X-Auth-Token
>> header: Date: Fri, 25 May 2012 08:29:46 GMT
>> header: Transfer-Encoding: chunked
>> connect: (172.17.1.6, 8774)
>> send: u'GET
>> /v2/**d1f5d27ccf594cdbb034c8a4123494**e9/servers/de3743be-69be-4ec3-**
>> 8de3-fc7df6903a97
>> HTTP/1.1\r\nHost: 172.17.1.6:8774
>> <http://172.17.1.6:8774>\r\nx-**auth-project-id: admin\r\nx-auth-token:
>>
>> 37ff6354b9114178889128175494c6**66\r\naccept-encoding: gzip,
>> deflate\r\naccept: application/json\r\nuser-**agent:
>> python-novaclient\r\n\r\n'
>> reply: 'HTTP/1.1 200 OK\r\n'
>> header: X-Compute-Request-Id: req-fc7686dd-7dff-4ea2-b2dd-**be584dadb7c1
>> header: Content-Type: application/json
>> header: Content-Length: 1371
>> header: Date: Fri, 25 May 2012 08:29:46 GMT
>> send: u'POST
>> /v2/**d1f5d27ccf594cdbb034c8a4123494**e9/servers/de3743be-69be-4ec3-**
>> 8de3-fc7df6903a97/os-volume_**attachments
>> HTTP/1.1\r\nHost: 172.17.1.6:8774
>> <http://172.17.1.6:8774>\r\**nContent-Length: 60\r\nx-auth-project-id:
>>
>> admin\r\naccept-encoding: gzip, deflate\r\naccept:
>> application/json\r\nx-auth-**token:
>> 37ff6354b9114178889128175494c6**66\r\nuser-agent:
>> python-novaclient\r\ncontent-**type:
>> application/json\r\n\r\n{"**volumeAttachment": {"device": "/dev/vdc",
>> "volumeId": 12}}'
>> reply: 'HTTP/1.1 200 OK\r\n'
>> header: X-Compute-Request-Id: req-4a22f603-4aad-4ae9-99a2-**6a7bcacf974f
>> header: Content-Type: application/json
>> header: Content-Length: 48
>> header: Date: Fri, 25 May 2012 08:29:46 GMT
>> $ echo $?
>> 0
>>
>> See the logs here:
>> http://paste.openstack.org/**show/18163/<http://paste.openstack.org/show/18163/>
>>
>
> Hi Seb,
>
> It looks like the DeviceIsBusy exception is raised when libvirt
> returns failure for any reason when attaching a volume. Try turning on
> debug logging for libvirt and attaching again, and posting the logs
> from libvirt.
>
> You might need to upgrade libvirt - the version in Ubuntu 12.04 should
> work, or upstream libvirt 0.9.12.
>
> Josh
>
>
>  If you need more information let me know :)
>> Thank you in advance.
>>
>> Cheers.
>>
>> ~Seb
>>
>
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