[openstack-dev] [nova] test strategy for the serial console feature

Jordan Pittier jordan.pittier at scality.com
Tue Jul 26 10:16:46 UTC 2016


Hi Markus
You don"t really need a whole new job for this. Just turn that flag to True
on existing jobs.

30/40 seconds is acceptable. But I am surprised considering a VM usually
boots in 5 sec or so. Any idea of where that slowdown comes from ?

On Tue, Jul 26, 2016 at 11:50 AM, Markus Zoeller <
mzoeller at linux.vnet.ibm.com> wrote:

> I'd like to discuss a testing strategy which ensures that the "serial
> console" feature in Nova doesn't break. Right now it's broken again [1].
> This happens every once in a while as we don't test it in our CI
> environment. I pushed [2] which should be the start of a change series
> which checks:
> * does the "get-serial-console" API return the expected result
> * is a connection to the instance via serial console possible
> * is the live-migration still possible
> * are the resources (ports) cleaned up correctly
>
> I can create a new testing job for that which enables the serial console
> in the nova config:
>
>     [serial_console]
>     enabled = True
>
> My concern is that I could burn unnecessary many testing nodes for that
> and my question is, are there are other ways which are less testing
> resource hungry?
>
> I also noticed that it takes up to 30 seconds (locally) until the
> instance is booted completely and accepts console input, which makes the
> test run for [3] a very long one.
>
> References:
> [1] https://bugs.launchpad.net/nova/+bug/1455252
> [2] https://review.openstack.org/#/c/346815/1
> [3] https://review.openstack.org/#/c/346911/1
>
> --
> Regards, Markus Zoeller (markus_z)
>
>
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