[lxc-users] LXD Live Migration

[Saint Michael]

I am about to get rid of vmware ESX and use only Ubuntu + LXD +LXC, but I
will hold a little longer.

On Wed, Nov 4, 2015 at 8:48 AM, Jamie Brown <Jamie.Brown at mpec.co.uk> wrote:

> Greetings all.
>
> I’ve been using LXD in a development environment for a few weeks and so
> far very impressed,
> I can see a really bright future for this technology!
>
> However, today I thought I’d try out the live migration, based on the
> following guide;
> https://insights.ubuntu.com/2015/05/06/live-migration-in-lxd/
>
> I believe I have followed the steps correctly, however when I run the move
> command, I
> receive the following output;
>
> # lxc move host1:test host2:test
> error: Error transferring container data: checkpoint failed:
> Problem accessing CRIU log: open /tmp/lxd_migration_899480871/dump.log: no
> such file or directory
>
> The file it is referring to above doesn't exist. However, there are other
> lxd_migration_*
> directories with different numbers appended. Each time I attempt the
> migration a new directory
> is created (e.g. lxd_migration_192965652), but there is no dump.log in
> there.
>
> The migration doesn't create a log file as per the guide above in;
> /var/log/lxd/test/migration_{dump|restore}_.log
>
> Steps I've taken;
>
> - Copied all profiles from host1 to host2
> - Added the migratable profile to the container
> - Removed lxcfs package (on both hosts)
> - Added the remote HTTPS hosts for both the local and remote hosts
>
> Both hosts are running Ubuntu 14.04.3 LTS (x64) with LXD version 0.21.
>
> The only difference I can tell between my hosts and the guide is that the
> 'migratable'
> profile (which came out-the-box with my LXD installation) doesn't contain
> the autostart
> entries as in the guide above;
>
> # lxc profile show migratable
> name: migratable
> config:
>   raw.lxc: |-
>     lxc.console = none
>     lxc.cgroup.devices.deny = c 5:1 rwm
>     lxc.seccomp =
>   security.privileged: "true"
> devices: {}
>
>
> Any help would be much appreciated!
>
> Thank you,
>
> Jamie
>
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