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asked 2015-03-13 06:09:08 -0500

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Error in Migrating VM's from one host machine to another. i am using Openstack Juno on CentOs 7.

When Trying to migrate VM's from one host to another host. I get the following error:

Error: Failed to launch instance "XYZ": Please try again later [Error: Unexpected error while running command. Command: ssh 172.16.32.* mkdir -p /var/lib/nova/instances/520c189a-d14d-4e31-8364-2f88648d7089 Exit code: 255 Stdout: u'' Stderr: u'Host key verification failed.\r\n'].

I am using openstack juno and CentOs 7 and have configured Controller on one host machine and Compute on another host machine.

Please suggest why this error is coming and how can it be resolved. Please elaborate as i m relatively new to openstack.