On 11/06/14 16:26 -0700, Devananda van der Veen wrote:
On Tue, Jun 10, 2014 at 1:23 AM, Flavio Percoco <[email protected]> wrote:Against:• Makes it hard for users to create applications that work across multiple clouds, since critical functionality may or may not be available in a given deployment. (counter: how many users need cross-cloud compatibility? Can they degrade gracefully?)The OpenStack Infra team does.This is definitely unfortunate but I believe it's a fair trade-off. I believe the same happens in other services that have support for different drivers.I disagree strongly on this point. Interoperability is one of the cornerstones of OpenStack. We've had panels about it at summits. Designing an API which is not interoperable is not "a fair tradeoff" for performance - it's destructive to the health of the project. Where other projects have already done that, it's unfortunate, but let's not plan to make it worse. A lack of interoperability not only prevents users from migrating between clouds or running against multiple clouds concurrently, it hurts application developers who want to build on top of OpenStack because their applications become tied to specific *implementations* of OpenStack.
What I meant to say is that, based on a core set of functionalities, all extra functionalities are part of the "fair trade-off". It's up to the cloud provider to choose what storage driver/features they want to expose. Nonetheless, they'll all expose the same core set of functionalities. I believe this is true also for other services, which I'm not trying to use as an excuse but as a reference of what the reality of non-opinionated services is. Marconi is opinionated w.r.t the API and the core set of functionalities it wants to support. You make really good points that I agree with. Thanks for sharing. -- @flaper87 Flavio Percoco
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