Open Stack

Hi everyone,

i can share that we use a agent_down_time of 3600 seconds and the default report_interval for clusters with around 600 compute nodes.

--
Felix Huettner

> -----Original Message-----
> From: Arnaud Morin <arnaud.morin at gmail.com>
> Sent: Wednesday, March 8, 2023 2:30 PM
> To: discuss openstack <openstack-discuss at lists.openstack.org>
> Subject: [neutron][largescale-sig] agent_down_time and report_interval
>
> Hello neutron and large-scalers,
>
> Is there any recommendation on tuning the neutron report_interval
> (agent) and agent_down_time (server) to "optimize" the communication
> between agents and servers without putting to much heavy duty on both
> rabbit and database?
>
> We are currently facing some scaling issue regarding this, and we found
> out that, at least, CERN did some tweak about this ([1] and [2])
>
> Is there anyone else with specific configuration on that part?
>
> I have the feeling that this could be increased (so report will happen
> less often). One obvious side effect of this is the fact that the server
> will take more time to see a down agent, is there any other side effect
> that could happen?
>
> Is it something we can eventually add in our large-scale
> documentation ([3])?
>
> Cheers,
>

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