openstack team mailing list archive

[Caitlin Bestler <Caitlin.Bestler@xxxxxxxxxxx>]

-----Original Message-----
From: andi abes [mailto:andi.abes@xxxxxxxxx] 
Sent: Friday, March 30, 2012 12:12 PM
To: Caitlin Bestler
Cc: Jay Pipes; openstack@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Openstack] Question on wsgi rate limiting

Caitlin, alas, you missed my point.

The intent of rate limiting API calls in OS goes well beyond limiting network traffic. It's intended to ensure that no one tenant/user consumes unduly high resources throughout the system. These resources are not just network bandwidth, but the myriad of resources involved in providing the service (DB access,  replication activity (both CPU,mem and bandwidth).
These have little to do with networking or quantum (though having quantum provide an API for bandwidth management would be cool).

You might want to think of this functionality as API-Quota - rather than the traditional bandwidth only rate limits.

---------------------------------

Yes, that label does make the difference in goals clearer.