<div dir="ltr">Pigging backing on the answer before me but yes, i had the same problem. Following the setup of ssh keys for the user 'Nova' between nodes will resolve the problem for you.</div><div class="gmail_extra">
<br clear="all"><div><br>Kind Regards,<br><br>James Shaw<br></div>
<br><br><div class="gmail_quote">On 15 August 2013 02:10, Md. Maruful Hassan <span dir="ltr"><<a href="mailto:mrf.mnm@gmail.com" target="_blank">mrf.mnm@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">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.<div class="im"><div><br></div><div><div style="font-family:arial,sans-serif;font-size:13px">
<font color="#3d85c6">013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Command:</font><b><font color="#ff0000"> ssh 10.3.77.52 mkdir -p /var/lib/nova/instances/e04986a1-8f56-4dd9-9995-419e05430da3</font></b></div>
<div style="font-family:arial,sans-serif;font-size:13px"><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Exit code: 255</font></div><div style="font-family:arial,sans-serif;font-size:13px">
<font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Stdout: ''</font></div><div style="font-family:arial,sans-serif;font-size:13px"><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp S</font><b><font color="#3d85c6">tderr: </font><font color="#ff0000">'Permission denied, please try again.\r\nPermission denied, please try again.\r\nPermission denied (publickey,password).\r\n'</font></b></div>
</div><div style="font-family:arial,sans-serif;font-size:13px"><font color="#3d85c6"><b><br></b></font></div></div><div>Setup ssh-key based passwordless access for user 'nova' (or whatever user nova process is running as ) between nodes. Then try again. </div>
<div><br></div><div><br></div></div><div class="gmail_extra"><br clear="all"><div>--<br>m@ruf</div>
<br><br><div class="gmail_quote"><div><div class="h5">On Thu, Aug 15, 2013 at 4:52 AM, Guilherme Russi <span dir="ltr"><<a href="mailto:luisguilherme.cr@gmail.com" target="_blank">luisguilherme.cr@gmail.com</a>></span> 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">
<div dir="ltr">Hello guys,<div><br></div><div> 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:</div>
<div><br></div><div><br></div><div><div><span><font color="#3d85c6">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.</font></span></div>
<div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">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</font></span></div>
</div><div><span><font color="#3d85c6"><br></font></span></div><div><span><font color="#3d85c6"><br></font></span></div><div><div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Traceback (most recent call last):</font></span></div>
<div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp rval = self.proxy.dispatch(ctxt, version, method, **args)</font></span></div>
<div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp return getattr(proxyobj, method)(ctxt, **kwargs)</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp temp_level, payload)</font></span></div><div><span><font color="#3d85c6">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__</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp self.gen.next()</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp return f(self, context, *args, **kw)</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp pass</font></span></div><div><span><font color="#3d85c6">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__</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp self.gen.next()</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp return function(self, context, *args, **kwargs)</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp function(self, context, *args, **kwargs)</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp e, sys.exc_info())</font></span></div><div><span><font color="#3d85c6">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__</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp self.gen.next()</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp return function(self, context, *args, **kwargs)</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp block_device_info)</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp inst_base_resize)</font></span></div><div><span><font color="#3d85c6">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__</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp self.gen.next()</font></span></div><div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp utils.execute('ssh', dest, 'mkdir', '-p', inst_base)</font></span></div>
<div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp cmd=' '.join(cmd))</font></span></div><div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp ProcessExecutionError: Unexpected error while running command.</font></span></div>
<div><span><font color="#3d85c6">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</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Exit code: 255</font></span></div><div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp Stdout: ''</font></span></div>
<div><span><font color="#3d85c6">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'</font></span></div>
<div><span><font color="#3d85c6">2013-08-14 15:49:48.294 1700 TRACE nova.openstack.common.rpc.amqp</font></span></div></div><div><span style="background-color:rgb(111,168,220)"><br>
</span></div><div>Can anybody help me?</div><div><br></div><div>Regards.</div><span><font color="#888888"><div><br></div><div>Guilherme.</div><div><br></div></font></span></div>
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