Open Stack

Hi,

> On 1 Dec 2019, at 11:44, Slawek Kaplonski <skaplons at redhat.com> wrote:
> 
> Hi,
> 
>> On 31 Oct 2019, at 23:03, Matt Riedemann <mriedemos at gmail.com> wrote:
>> 
>> On 10/31/2019 4:15 PM, Slawek Kaplonski wrote:
>>>> 3. CirrOS guest SSH issues
>>>> 
>>>> There are several (some might be duplicates):
>>>> 
>>>> http://status.openstack.org/elastic-recheck/index.html#1848078
>>> This one is I think the same as we have reported in
>>> https://bugs.launchpad.net/neutron/+bug/1850557
>>> Basically we noticed issues with dhcp after resize/migration/shelve of instance
>>> but I didn't have time to investigate it yet.
>> 
>> Hmm, https://review.opendev.org/#/c/670591/ is new to devstack in Train and was backported to stable/stein. I wonder if that is too aggressive and is causing issues with operations where the guest is stopped and started, though for resize/migrate/shelve/unshelve the guest is destroyed on one host and re-spawned on another, so I would think that having a graceful shutdown for the guest wouldn't matter in those cases, unless it has to do with leaving the guest "dirty" somehow before transferring the root disk / creating a snapshot (in the case of shelve). Maybe we should bump that back up to 10 seconds?
> 
> I finally spent some time on investigating this issue. I was able to reproduce it locally and I found that the problem is in openvswitch firewall. All is described in [1]. I just pushed patch which should fix this. It’s in [2].

My patch is now merged so I hope we will not see this issue with SSH in resize/shelve tests anymore.

> 
> [1] https://bugs.launchpad.net/neutron/+bug/1850557
> [2] https://review.opendev.org/696794
> 
>> 
>> -- 
>> 
>> Thanks,
>> 
>> Matt
>> 
> 
> — 
> Slawek Kaplonski
> Senior software engineer
> Red Hat

— 
Slawek Kaplonski
Senior software engineer
Red Hat