Open Stack

I have not done the live-migration setup before but looking at the log it
seems like you don't have ssh setup right between your compute nodes.

013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
Command:*ssh 10.3.77.52 mkdir -p
/var/lib/nova/instances/e04986a1-8f56-4dd9-9995-419e05430da3*
2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Exit
code: 255
2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Stdout: ''
2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
S*tderr: 'Permission
denied, please try again.\r\nPermission denied, please try
again.\r\nPermission denied (publickey,password).\r\n'*
*
*
Setup ssh-key based passwordless access for user 'nova' (or whatever user
nova process is running as ) between nodes. Then try again.



--
m at ruf


On Thu, Aug 15, 2013 at 4:52 AM, Guilherme Russi <luisguilherme.cr at gmail.com
> wrote:

> Hello guys,
>
>  I've been facing an error with live migration since last week and I
> wonder why I can't migrate my instances. I'm using the Grizzly release and
> I got this error in my both compute nodes:
>
>
> 2013-08-14 15:49:47.788 ERROR nova.compute.manager
> [req-1fad8da2-2682-48a4-a390-64cb00036568 c402785616534f2096b34ce132b7d3f2
> d532a4fc2e9e4b5f83b6dec7085237e5] [instance:
> e04986a1-8f56-4dd9-9995-419e05430da3] Unexpected error while running
> command.
> Stderr: 'Permission denied, please try again.\r\nPermission denied, please
> try again.\r\nPermission denied (publickey,password).\r\n'. Setting
> instance vm_state to ERROR
> 2013-08-14 15:49:48.294 ERROR nova.openstack.common.rpc.amqp
> [req-1fad8da2-2682-48a4-a390-64cb00036568 c402785616534f2096b34ce132b7d3f2
> d532a4fc2e9e4b5f83b6dec7085237e5] Exception during message handling
>
>
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> Traceback (most recent call last):
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/amqp.py", line
> 430, in _process_data
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp     rval
> = self.proxy.dispatch(ctxt, version, method, **args)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/dispatcher.py",
> line 133, in dispatch
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> return getattr(proxyobj, method)(ctxt, **kwargs)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/exception.py", line 117, in wrapped
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> temp_level, payload)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> self.gen.next()
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/exception.py", line 94, in wrapped
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> return f(self, context, *args, **kw)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 209, in
> decorated_function
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp     pass
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> self.gen.next()
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 195, in
> decorated_function
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> return function(self, context, *args, **kwargs)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 260, in
> decorated_function
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> function(self, context, *args, **kwargs)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 237, in
> decorated_function
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp     e,
> sys.exc_info())
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> self.gen.next()
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 224, in
> decorated_function
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> return function(self, context, *args, **kwargs)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2354, in
> resize_instance
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> block_device_info)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 3467,
> in migrate_disk_and_power_off
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> inst_base_resize)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> self.gen.next()
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 3444,
> in migrate_disk_and_power_off
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> utils.execute('ssh', dest, 'mkdir', '-p', inst_base)
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.7/dist-packages/nova/utils.py", line 239, in execute
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> cmd=' '.join(cmd))
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
> ProcessExecutionError: Unexpected error while running command.
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Command:
> ssh 10.3.77.52 mkdir -p
> /var/lib/nova/instances/e04986a1-8f56-4dd9-9995-419e05430da3
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Exit
> code: 255
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Stdout:
> ''
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Stderr:
> 'Permission denied, please try again.\r\nPermission denied, please try
> again.\r\nPermission denied (publickey,password).\r\n'
> 2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp
>
> Can anybody help me?
>
> Regards.
>
> Guilherme.
>
>
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