[Openstack] Steps that can help stabilize Nova's trunk

Jim Curry jim.curry at rackspace.com
Fri Feb 18 03:25:09 UTC 2011


Soren, thank you for the explanation!

Jim

On Feb 17, 2011, at 5:11 PM, Soren Hansen wrote:

> 2011/2/17 Jim Curry <jim.curry at rackspace.com>:
>> By defining an unbreakable reference platform, are we necessarily limiting its ability to integrate on other platforms?  That is my underlying question.  I understand the need for a reference platform but am trying to understand to what extent that results in us not being able to easily support other platforms (or not).
> 
> Oh, I see. Thanks for clarifying. I don't think this limits us in that
> respect at all. I don't think we've ever rejected patches that would
> allow us to run on other platforms (and I can't imagine we ever
> would).
> 
> That said, Ubuntu offers a very up-to-date selection of software that
> we can build upon. Not being limited by a static, out-of-date set of
> dependencies is very much the reason we can move forward at the pace
> that we do. Other distros might not have all the dependencies we need.
> Yet, at least. It's possible they will in their next release.
> 
> If we take the example from my previous e-mail in this thread.. There
> was a race condition that was caused by a bug in Eventlet. There were
> two[1] ways to fix it: 1) Fix it in Eventlet or 2) accept Eventlet's
> brokenness and attempt to work around it. Once the problem was
> identified and I was at a point where I knew I had to make that
> decision, option 1) took probably about an hour or so, includiing
> filing the bug with eventlet, providing them with a test case, writing
> a patch, uploading it to Ubuntu, and backporting it to multiple
> version of Ubuntu in our PPA's. It's not entirely inconceivable that
> I'd still be working on option 2 right now (we rely pretty heavily on
> Eventlet). If someone wants to put Nova into some other distribution
> they "just" need to make sure that the eventlet in said distro has
> this patch applied.
> 
> [1]: Well, there's a third: Monkey patch eventlet. I'm just afraid I'd
> be caught in an infinite loop of irony.
> 
> -- 
> Soren Hansen
> Ubuntu Developer    http://www.ubuntu.com/
> OpenStack Developer http://www.openstack.org/



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