Swift does rate limiting across the proxy servers ("api servers" in nava parlance) as described at http://docs.openstack.org/developer/swift/ratelimit.html. It uses a memcache pool to coordinate the rate limiting across proxy processes (local or across machines).
Code's at https://github.com/openstack/swift/blob/master/swift/common/middleware/ratelimit.py
--John
On 14 Jun 2016, at 8:02, Matt Riedemann wrote:
> A question came up in the nova IRC channel this morning about the api_rate_limit config option in nova which was only for the v2 API.
>
> Sean Dague explained that it never really worked because it was per API server so if you had more than one API server it was busted. There is no in-tree replacement in nova.
>
> So the open question here is, what are people doing as an alternative?
>
> --
>
> Thanks,
>
> Matt Riedemann
>
>
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