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Technically is correct but you can imagine what my answer is about enabling
the green threads backdoors. This functionality is for troubleshooting only
and should not be enabled in a production environment. Just as a temporary
workaround, we can add INFO messages in the "periodic_sync_routers_task"
method that you can easily parse reading the logs. This patch could be also
backported to stable versions.

Bug for reporting full sync state in Neutron agents:
https://bugs.launchpad.net/neutron/+bug/2011422

On Mon, Mar 13, 2023 at 12:24 PM Mohammed Naser <mnaser at vexxhost.com> wrote:

> It looks like this has sparked a cool ops discussion.
>
> I’ve tried an attempt here, though I am not sure how I feel about it yet.
>
> https://github.com/vexxhost/atmosphere/pull/359/files
>
> I have not extensively tested it but would be good to hear from Neutron
> team on this approach vs the approach from Felix.
>
> On Mon, Mar 13, 2023 at 12:07 PM Rodolfo Alonso Hernandez <
> ralonsoh at redhat.com> wrote:
>
>> Hello Mohammed:
>>
>> So far we don't have any mechanism to report the sync status of an agent.
>> I know that, for example, the DHCP agent reports an INFO message with the
>> statement 'Synchronizing state complete'. But other agents don't provide
>> this information or you need to manually observe the logs to detect that.
>>
>> Because this could be an interesting information, I'll open a RFE bug to
>> try to bring this information to the existing agents.
>>
>> Regards.
>>
>> On Sun, Mar 12, 2023 at 11:11 AM Mohammed Naser <mnaser at vexxhost.com>
>> wrote:
>>
>>> Hi folks,
>>>
>>> I'm working on improving the stability of rollouts when using Kubernetes
>>> as a control plane, specifically around the L3 agent, it seems that I have
>>> not found a clear way to detect in the code path where the L3 agent has
>>> finished it's initial sync..
>>>
>>> Am I missing it somewhere or is the architecture built in a way that
>>> doesn't really answer that question?
>>>
>>> Thanks
>>> Mohammed
>>>
>>> --
>>> Mohammed Naser
>>> VEXXHOST, Inc.
>>>
>> --
> Mohammed Naser
> VEXXHOST, Inc.
>
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