[Cinder] cinder-volume connection problem when creating the instance

Minjun Hong nickeysgo at gmail.com
Thu Dec 20 14:41:17 UTC 2018


On Thu, Dec 20, 2018 at 12:37 AM Sean McGinnis <sean.mcginnis at gmx.com>
wrote:

> > > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager
> > > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Failed to
> initialize
> > > driver.: ProcessExecutionError: Unexpected error while running command.
> > > Command: sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C
> vgs
> > > --version
> > > Exit code: 1
> > > Stdout: u''
> > > Stderr: u'sudo: no tty present and no askpass program specified\n'
>
> This appears to be the problem, or at least one of them.
>
> The account the cinder services are running under (usually "cinder") needs
> to
> be able to perform password-less sudo calls to execute some of the
> privileged
> calls needed to set up and interact with storage.
>
> I thought typically the system packages used in the install guides would
> create
> this user and set the appropriate permissions to do that. But something may
> have been modified on your system that is causing it to require a password
> on
> sudo calls, which as a headless service will not work.
>
> I don't have any systems that have that issue to verify with, but I
> believe if
> you run "visudo" and explicitly set cinder to NOPASSWD, you should then be
> able
> to restart the service and get better results.
>
> Sean
>

Thanks for your advice, Sean.
The problem was caused by omitting "Install OpenStack Packages" step.
So, I reinstalled Host OS and Cinder on the storage server again.
And then, it looks working well.

Regards,
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