[lxc-users] Trying out migration, getting "error: checkpoint failed"

[Tycho Andersen]

Hi Giles,

On Fri, May 01, 2015 at 06:03:59PM +0100, Giles Thomas wrote:
> Hi there,
> 
> I've been taking a look at LXD and the migration feature sounds really cool,
> but unfortunately I can't get it to work.  I'm following Tycho Andersen's
> blog post at <http://tycho.ws/blog/2015/04/lxd-live-migration.html>, and
> when I run
> 
>     lxc move lxd:migratee lxd2:migratee
> 
> I get the error
> 
>     error: checkpoint failed
> 
> OS is Ubuntu Trusty 64-bit, running on Amazon EC2:
> 
>     # uname -a
>     Linux ip-10-139-6-38 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13
> 19:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
>     # lsb_release -a
>     No LSB modules are available.
>     Distributor ID:    Ubuntu
>     Description:    Ubuntu 14.04.2 LTS
>     Release:    14.04
>     Codename:    trusty
> 
> There's no migration log in /var/log/lxd/migratee/, just an empty lxc.log.
> Nothing being written to syslog.
> 
> Any advice on tracking down what going wrong would be much appreciated!

What versions of criu and liblxc do you have installed? Can you look
in /var/lib/lxd/lxc/<container>/lxc.log (or
/var/log/lxd/<container>/lxc.log; there was a bug fixed recently that
moved it to the latter location).

Thanks,

Tycho

> 
> All the best,
> 
> Giles
> 
> -- 
> Giles Thomas <giles at pythonanywhere.com>
> 
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