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.<br>
<br>I'm running the latest packages on Ubuntu 12.04 for OpensStack (essex) and Ceph (argonaut).<br><br>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.<br>
<br>[0] <a href="http://www.sebastien-han.fr/blog/2012/06/10/introducing-ceph-to-openstack/">http://www.sebastien-han.fr/blog/2012/06/10/introducing-ceph-to-openstack/</a><br>[1] <a href="https://answers.launchpad.net/nova/+question/201366">https://answers.launchpad.net/nova/+question/201366</a><br>
<br> - Travis<br><br><div class="gmail_quote">On Fri, May 25, 2012 at 8:32 PM, Josh Durgin <span dir="ltr"><<a href="mailto:josh.durgin@inktank.com" target="_blank">josh.durgin@inktank.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="HOEnZb"><div class="h5">On 05/25/2012 01:31 AM, Sébastien Han wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
Hi everyone,<br>
<br>
I setup a ceph cluster and I use the RBD driver for nova-volume.<br>
I can create volumes and snapshots but currently I can't attach them to<br>
an instance.<br>
Apparently the volume is detected as busy but it's not, no matter which<br>
name I choose.<br>
I tried from horizon and the command line, same issue.<br>
<br>
$ nova --debug volume-attach de3743be-69be-4ec3-8de3-<u></u>fc7df6903a97 12<br>
/dev/vdc<br>
connect: (localhost, 5000)<br>
send: 'POST /v2.0/tokens HTTP/1.1\r\nHost:<br>
localhost:5000\r\nContent-<u></u>Length: 100\r\ncontent-type:<br>
application/json\r\naccept-<u></u>encoding: gzip, deflate\r\naccept:<br>
application/json\r\nuser-<u></u>agent: python-novaclient\r\n\r\n{"<u></u>auth":<br>
{"tenantName": "admin", "passwordCredentials": {"username": "admin",<br>
"password": "admin"}}}'<br>
reply: 'HTTP/1.1 200 OK\r\n'<br>
header: Content-Type: application/json<br>
header: Vary: X-Auth-Token<br>
header: Date: Fri, 25 May 2012 08:29:46 GMT<br>
header: Transfer-Encoding: chunked<br>
connect: (172.17.1.6, 8774)<br>
send: u'GET<br>
/v2/<u></u>d1f5d27ccf594cdbb034c8a4123494<u></u>e9/servers/de3743be-69be-4ec3-<u></u>8de3-fc7df6903a97<br>
HTTP/1.1\r\nHost: <a href="http://172.17.1.6:8774" target="_blank">172.17.1.6:8774</a><br></div></div>
<<a href="http://172.17.1.6:8774" target="_blank">http://172.17.1.6:8774</a>>\r\nx-<u></u>auth-project-id: admin\r\nx-auth-token:<div class="im"><br>
37ff6354b9114178889128175494c6<u></u>66\r\naccept-encoding: gzip,<br>
deflate\r\naccept: application/json\r\nuser-<u></u>agent:<br>
python-novaclient\r\n\r\n'<br>
reply: 'HTTP/1.1 200 OK\r\n'<br>
header: X-Compute-Request-Id: req-fc7686dd-7dff-4ea2-b2dd-<u></u>be584dadb7c1<br>
header: Content-Type: application/json<br>
header: Content-Length: 1371<br>
header: Date: Fri, 25 May 2012 08:29:46 GMT<br>
send: u'POST<br>
/v2/<u></u>d1f5d27ccf594cdbb034c8a4123494<u></u>e9/servers/de3743be-69be-4ec3-<u></u>8de3-fc7df6903a97/os-volume_<u></u>attachments<br>
HTTP/1.1\r\nHost: <a href="http://172.17.1.6:8774" target="_blank">172.17.1.6:8774</a><br></div>
<<a href="http://172.17.1.6:8774" target="_blank">http://172.17.1.6:8774</a>>\r\<u></u>nContent-Length: 60\r\nx-auth-project-id:<div class="im"><br>
admin\r\naccept-encoding: gzip, deflate\r\naccept:<br>
application/json\r\nx-auth-<u></u>token:<br>
37ff6354b9114178889128175494c6<u></u>66\r\nuser-agent:<br>
python-novaclient\r\ncontent-<u></u>type:<br>
application/json\r\n\r\n{"<u></u>volumeAttachment": {"device": "/dev/vdc",<br>
"volumeId": 12}}'<br>
reply: 'HTTP/1.1 200 OK\r\n'<br>
header: X-Compute-Request-Id: req-4a22f603-4aad-4ae9-99a2-<u></u>6a7bcacf974f<br>
header: Content-Type: application/json<br>
header: Content-Length: 48<br>
header: Date: Fri, 25 May 2012 08:29:46 GMT<br>
$ echo $?<br>
0<br>
<br>
See the logs here:<br>
<a href="http://paste.openstack.org/show/18163/" target="_blank">http://paste.openstack.org/<u></u>show/18163/</a><br>
</div></blockquote>
<br>
Hi Seb,<br>
<br>
It looks like the DeviceIsBusy exception is raised when libvirt<br>
returns failure for any reason when attaching a volume. Try turning on<br>
debug logging for libvirt and attaching again, and posting the logs<br>
from libvirt.<br>
<br>
You might need to upgrade libvirt - the version in Ubuntu 12.04 should<br>
work, or upstream libvirt 0.9.12.<br>
<br>
Josh<div class="im"><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
If you need more information let me know :)<br>
Thank you in advance.<br>
<br>
Cheers.<br>
<br>
~Seb<br>
</blockquote>
<br></div>
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</blockquote></div><br>