Open Stack

It's great to be having the discussion since we need to find what can be simplified and what is currently needed.

At one time, we had discussed some form of opt-in stats monitoring of production deployments (https://blueprints.launchpad.net/oslo/+spec/opt-in-stats-tracking). While there is no implementation, it would be a place where a set of counters could help out to assess the potential impact. There are lots of APIs (at CERN, we use the ones listed in http://information-technology.web.cern.ch/book/cern-cloud-infrastructure-user-guide/advanced-topics/programming-apis)

The challenge is to know which external facing APIs 

- are using XML and know they're using XML
- think they are not using XML but actually one of their library/ecosystem products use it (it is quite difficult to know without diving into the logs)
- weren't sure on the details of the question in the survey

For many sites, they use a library/ecosystem product and do not know what is underneath. Given a transition period, there is a good chance to avoid downtime.

Tim

> -----Original Message-----
> From: Sean Dague [mailto:sean at dague.net]
> Sent: 15 January 2014 15:27
> To: Russell Bryant; Tom Fifield; openstack at lists.openstack.org
> Subject: Re: [Openstack] Fwd: [nova] [rfc] drop XML from v3 API entirely
> 
> On 01/15/2014 09:02 AM, Russell Bryant wrote:
> > On 01/13/2014 08:52 PM, Tom Fifield wrote:
> >> According to the most recent user survey, more than 30% of users
> >> consume the XML API.
> >
> > Do you have a reference with more detail on this?  Simply "30%"
> > doesn't really mean much without more detail on what the question was,
> > what the choices where, how many answered the question, etc ...
> 
> Right, it's also an odd question. Because I'm not sure which SDKs actually talks to the XML interface (python does not, and I didn't think
> jclouds did either). I doubt that 30% of the OpenStack users wrote their own client library to talk to the API.
> 
> So we really need the next layer on this to call it valid statistics.
> Because 100% of users are using the JSON API (given that OpenStack components talk between each other on JSON only). And you have to
> go out of your way to us XML.
> 
> 	-Sean
> 
> --
> Sean Dague
> Samsung Research America
> sean at dague.net / sean.dague at samsung.com
> http://dague.net