Agree with this approach. The large-scale test scenario configuration manual is very meaningful.
When the OpenStack deployment scale reaches a certain level (for example, nodes >= 200,500… etc.),
various exception scenarios will occur, rabitmq blocking conditions, and create a batch of servers.
It’s success rate (There will be some configurations to be care. e.g. scheduling policies, rpc wait time, amount of works etc.).
If there is a reference manual, this is very friendly.
>
I wanted to send this to get other people's feedback if they have
> particular nova configurations once they hit a certain scale (hundreds
> or thousands of nodes). Every once in awhile in IRC I'll be chatting
> with someone about configuration changes they've made running at large
> scale to avoid, for example, hammering the control plane. I don't know
> how many times I've thought, "it would be nice if we had a doc
> highlighting some of these things so a new operator could come along and
> see, oh I've never tried changing that value before".
>
> I haven't started that doc, but I've started a bug report for people to
> dump some of their settings. The most common ones could go into a simple
> admin doc to start.
>
> I know there is more I've thought about in the past that I don't have in
> here but this is just a starting point so I don't make the mistake of
> not taking action on this again.
>
> https://bugs.launchpad.net/nova/+bug/1838819
>
> --
>
> Thanks,
>
> Matt
Hi Matt,
My name is Joe - docs person from years back - this looks like a good initiative and I would be up for documenting these settings at scale.
Next step I can see is gathering more Info about this pain point (already started :)) and then I can draft something together for feedback.