Open Stack

thanks, Vish, that solved my problem.

followed your instructions, I deleted all the instances on the openstack
system, the problem's been solved.


-----------------------------------------------------------------
韦远科
wei yuanke(wei)
gtalk: weiyuanke123 at gmail.com
msn: weiyuanke123 at hotmail.com



On Fri, Apr 6, 2012 at 7:19 AM, Vishvananda Ishaya <vishvananda at gmail.com>wrote:

> I would try this again.
>
> 1. Delete all instances on the host.
> 2. Clean out the _base directory.
> 3. Restart nova-compute
> 4. Try to run the instance again.
>
> If that doesn't work, I would suspect a bad sector on your hard drive that
> is getting reused.
>
> Vish
>
> On Apr 5, 2012, at 2:43 AM, yuanke wei wrote:
>
> hi all,
>
> prob1:
> I deployed openstack on a 1controller+Ncompute basis. All the compute node
> seems work well and windows 2008 server image can be spawned successfully,
> except on one compute node, I encountered the following errors, can someone
> tell me what might be the problem??
> after deleting all the files under "_base" dir, the error still there.
> if needed, further info can be provided
>
> 2012-04-05 09:30:03,874 DEBUG nova.rpc [-] Making asynchronous cast on
> network... from (pid=3068) cast /var/lib/nova/nova/rpc/impl_kombu.py:756
> 2012-04-05 09:30:03,932 ERROR nova.rpc [-] Exception during message
> handling
> (nova.rpc): TRACE: Traceback (most recent call last):
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/rpc/impl_kombu.py", line
> 620, in _process_data
> (nova.rpc): TRACE:     rval = node_func(context=ctxt, **node_args)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/exception.py", line 100, in
> wrapped
> (nova.rpc): TRACE:     return f(*args, **kw)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/compute/manager.py", line
> 485, in run_instance
> (nova.rpc): TRACE:     self._run_instance(context, instance_id, **kwargs)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/compute/manager.py", line
> 481, in _run_instance
> (nova.rpc): TRACE:     _cleanup()
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/compute/manager.py", line
> 406, in _cleanup
> (nova.rpc): TRACE:     _deallocate_network()
> (nova.rpc): TRACE:   File "/usr/lib/python2.6/contextlib.py", line 23, in
> __exit__
> (nova.rpc): TRACE:     self.gen.next()
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/compute/manager.py", line
> 459, in _run_instance
> (nova.rpc): TRACE:     network_info, block_device_info)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/exception.py", line 100, in
> wrapped
> (nova.rpc): TRACE:     return f(*args, **kw)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/virt/libvirt/connection.py",
> line 629, in spawn
> (nova.rpc): TRACE:     block_device_info=block_device_info)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/virt/libvirt/connection.py",
> line 896, in _create_image
> (nova.rpc): TRACE:     size=size)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/virt/libvirt/connection.py",
> line 788, in _cache_image
> (nova.rpc): TRACE:     call_if_not_exists(base, fn, *args, **kwargs)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/utils.py", line 687, in inner
> (nova.rpc): TRACE:     retval = f(*args, **kwargs)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/virt/libvirt/connection.py",
> line 786, in call_if_not_exists
> (nova.rpc): TRACE:     fn(target=base, *args, **kwargs)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/virt/libvirt/connection.py",
> line 800, in _fetch_image
> (nova.rpc): TRACE:     images.fetch_to_raw(context, image_id, target,
> user_id, project_id)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/virt/images.py", line 88, in
> fetch_to_raw
> (nova.rpc): TRACE:     path_tmp, staged)
> (nova.rpc): TRACE:   File "/var/lib/nova/nova/utils.py", line 190, in
> execute
> (nova.rpc): TRACE:     cmd=' '.join(cmd))
> (nova.rpc): TRACE: ProcessExecutionError: Unexpected error while running
> command.
> (nova.rpc): TRACE: Command: qemu-img convert -O raw
> /var/lib/nova/instances/_base/bc33ea4e26e5e1af1408321416956113a4658763.part
> /var/lib/nova/instances/_base/bc33ea4e26e5e1af1408321416956113a4658763.converted
> (nova.rpc): TRACE: Exit code: 1
> (nova.rpc): TRACE: Stdout: ''
> (nova.rpc): TRACE: Stderr: 'qemu-img: error while reading\n'
> (nova.rpc): TRACE:
>
> prob2:
> since the problem may be on the fact that the cached image on the compute
> node is broken, so how to force the compute node to abandon its local
> cached images and get from the remote image server???
>  simply deleting all the files under "_base" dir seems don't work, I see
> no data transfer between the compute node and the image server.
>
> thks in advance!
>
>
>
>
>
> -----------------------------------------------------------------
> 韦远科
> wei yuanke(wei)
> gtalk: weiyuanke123 at gmail.com
> msn: weiyuanke123 at hotmail.com
>
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