Thanks for the reply walterxj. The issue looks like is caused by the missing configurations in /etc/nova/nova.conf for service nova-conductor. The error message in api and compute indicates that they’re waiting for RPC response from nova-conductor. Then, in nova-conductor.log, we can get: http://paste.openstack.org/show/84851/ Two stupid mistakes I have made: 1. Wrong IP addresses for glance 2. Missing neutron related configurations for nova.conf The issue is gone now. Thanks. -chen From: walterxj [mailto:walterxj at gmail.com] Sent: Tuesday, June 24, 2014 5:01 PM To: Li, Chen; openstack Subject: Re: [Openstack] Failed to migrate an instance hi: first: yum install -y sysfsutils.x86_64 . and then:follow the steps in: https://lists.launchpad.net/openstack/msg24036.html ________________________________ walterxj From: Li, Chen<mailto:chen.li at intel.com> Date: 2014-06-24 16:35 To: openstack at lists.openstack.org<mailto:openstack at lists.openstack.org> Subject: [Openstack] Failed to migrate an instance Hi list, I’m working under CentOS + icehouse. When I run command: nova migrate ${instance} I get error: ERROR: The server could not comply with the request since it is either malformed or otherwise incorrect. (HTTP 400) (Request-ID: req-ecb2321b-aa4b-4684-92f7-9fd511918ec0) Here is my /var/log/nova/api.log: http://paste.openstack.org/show/84760/ And /var/log/nova/compute.log: http://paste.openstack.org/show/84761/ Anyone know why this is happened ?? Thanks. -chen -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140625/319c8db4/attachment.html>