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[Bug 1123274] Re: Unable to pre-create chardev file when booting from volume

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 20 Mar 2013 16:05:34 -0000
Reply-to: Bug 1123274 <1123274@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Changed in: nova
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1123274

Title:
  Unable to pre-create chardev file when booting from volume

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  I am using openstack-ubuntu-testing-grizzly and I have this problem
  when booting from volumes, this was working well before but seems to
  have broken in the last 72 hours.

  booting from local storage works fine but when trying to boot from
  volume, libvirt complains that the instance-xxxxxxxx directory does
  not exist:

  2013-02-12 12:36:05.860 ERROR nova.compute.manager [req-808284f5-5641-4fd6-b8fd-733f243e49da 8636766bc6b342539a9c1b0e3e0c24cc 24e6c25ee7bf4f5bbcd19c53bbe84f37] [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94] Instance failed to spawn
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94] Traceback (most recent call last):
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 985, in _spawn
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]     block_device_info)
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 1200, in spawn
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]     block_device_info)
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2082, in _create_domain_and_network
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]     domain = self._create_domain(xml, instance=instance)
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 2043, in _create_domain
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]     domain.createWithFlags(launch_flags)
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 187, in doit
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]     result = proxy_call(self._autowrap, f, *args, **kwargs)
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 147, in proxy_call
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]     rv = execute(f,*args,**kwargs)
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 76, in tworker
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]     rv = meth(*args,**kwargs)
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 650, in createWithFlags
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94]     if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
  2013-02-12 12:36:05.860 23382 TRACE nova.compute.manager [instance: 0d17dae7-66e8-491d-8727-77ba163dfb94] libvirtError: Unable to pre-create chardev file '/var/lib/nova/instances/instance-00000122/console.log': No such file or directory

  
  Again, this is only when booting from volume.

  Boris

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