Open Stack

Hey Eric,
make sure first to read that :
http://docs.openstack.org/trunk/openstack-compute/admin/content/configuring-live-migrations.html

and also make sure on both systems the user "nova" the SSH keys are 
installed
Razique

> Eric Luo <mailto:nextfool at gmail.com>
> 21 mai 2012 11:34
> Hello ,all.
>
> I have a two nodes installation . OS1 is the cloud controller ,and OS2 
> is a nova-compute node.
> I have a vm (name as vm1)  running on OS1.
> When I use the command *  nova migrate  vm1 *
> *
> *
> The dashboard is showing the vm1 as : status :error ,task :Resize Prep
> I tail ed  the nova-compute.log in OS1, and found the following error 
> information while running the * nova migrate  vm1 *command :
>
>
> Can someone please explain to me what does these error mean ,and 
> what's wrong with my config ...
>
>
> 2012-05-21 17:20:45 ERROR nova.compute.manager 
> [req-d0f494cb-e9d6-41d2-b6df-6faa432a644d 
> 6ffaaedb60c24f5eb888319e1e387d75 0d7a5a12b6f54aa9bff986bf138bc0b7] 
> Unex pected error while running command.
> Command: ssh 192.168.0.205 mkdir -p 
> /var/lib/nova/instances/instance-0000000a
> Exit code: 255
> Stdout: ''
> Stderr: 'Host key verification failed.\r\n'. Setting instance vm_state 
> to ERROR
> 2012-05-21 17:20:45 ERROR nova.rpc.amqp 
> [req-d0f494cb-e9d6-41d2-b6df-6faa432a644d 
> 6ffaaedb60c24f5eb888319e1e387d75 0d7a5a12b6f54aa9bff986bf138bc0b7] 
> Exception during message handling
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp Traceback (most recent call last):
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 252, in 
> _process_data
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     rval = 
> node_func(context=ctxt, **node_args)
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/exception.py", line 114, in wrapped
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     return f(*args, **kw)
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 153, 
> in decorated_function
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     function(self, context, 
> instance_uuid, *args, **kwargs)
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 177, 
> in decorated_function
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     sys.exc_info())
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     self.gen.next()
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 171, 
> in decorated_function
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     return function(self, 
> context, instance_uuid, *args, **kwargs)
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1330, 
> in resize_instance
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     
> self._set_instance_error_state(context, instance_uuid)
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     self.gen.next()
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1325, 
> in resize_instance
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     instance_type_ref, 
> self._legacy_nw_info(network_info))
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/exception.py", line 114, in wrapped
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     return f(*args, **kw)
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp   File 
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", 
> line 2363, in migrate_disk_and_power_off
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp     raise e
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp ProcessExecutionError: 
> Unexpected error while running command.
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp Command: ssh 192.168.0.205 
> mkdir -p /var/lib/nova/instances/instance-0000000a
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp Exit code: 255
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp Stdout: ''
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp Stderr: 'Host key verification 
> failed.\r\n'
> 2012-05-21 17:20:45 TRACE nova.rpc.amqp
> ^C
>
>
>
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-- 
Nuage & Co - Razique Mahroua
razique.mahroua at gmail.com



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