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"Host key verification failed" while migrating instance to Icehouse

asked 2014-05-23 00:39:39 -0500

Deeptanshu gravatar image

updated 2014-05-23 17:03:26 -0500

smaffulli gravatar image

I am getting the below error in "Migrate Instance " option in icehouse in multi node environment. Please check and suggest.

 Error: Failed to launch instance "Tstisnh": Please try again later [Error: Unexpected error while running command. Command: ssh mkdir -p /var/lib/nova/instances/1dc76c7e-a792-4458-93d7-831800861426 Exit code: 255 Stdout: '' Stderr: 'Host key verification failed.\r\n'].
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did your error solved?? I had the same one...

Queen gravatar imageQueen ( 2015-02-20 02:32:36 -0500 )edit

Have to found a solution to the above error. I am getting the same error. Please reply if you found the answer.

HK gravatar imageHK ( 2015-03-22 07:11:41 -0500 )edit

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answered 2014-05-27 00:00:08 -0500

fifieldt gravatar image

updated 2014-05-27 00:00:23 -0500

This is an error from the underlying ssh command as its trying to do the move. You need to allow the hosts to ssh into each other properly. Look up 'passwordless ssh between hosts' or similar.

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I have already tried with the suggested option . I have check by manually doing SSH into the different machines they are working fine.

Deeptanshu gravatar imageDeeptanshu ( 2014-05-27 02:00:43 -0500 )edit

did you try the Nova account rather than the root account?

shzeng gravatar imageshzeng ( 2014-09-10 18:59:59 -0500 )edit

How/where do you change from using the root account to migrate an instance to using the nova account?

Stephanie Fuller gravatar imageStephanie Fuller ( 2014-12-04 16:18:07 -0500 )edit

However, having nova do the ssh for the migration has problems because nova's shell is /sbin/nologin, any ssh command will fail because it can't log in. So, doing it as root is preferred, possibly??? Again, where do I have that kind of control to change which login is used for the migration.

Stephanie Fuller gravatar imageStephanie Fuller ( 2014-12-05 09:48:22 -0500 )edit

I changed nova to allow logins. I can ssh mkdir with a pw. authorized keys has entry for 'nova-migration-public-key'. from whence is that? should I add nova public key? anybody out there?

Stephanie Fuller gravatar imageStephanie Fuller ( 2014-12-09 10:33:10 -0500 )edit

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Asked: 2014-05-23 00:39:39 -0500

Seen: 3,333 times

Last updated: May 27 '14