[Openstack] Cross-zone instance identifiers in EC2 API - Is it worth the effort?

Eric Day eday at oddments.org
Mon Jul 11 19:37:41 UTC 2011


We did discuss using IPV6 addresses as IDs months ago (IRC and email),
but I don't remember why we decided not to. It may have been due to
current adoption. I think it was pvo who originally had the idea.

-Eric

On Mon, Jul 11, 2011 at 07:24:39PM +0000, Chris Behrens wrote:
> 
> On Jul 11, 2011, at 12:01 PM, Ed Leafe wrote:
> 
> > On Jul 11, 2011, at 2:04 PM, Eric Day wrote:
> > 
> >>> How is
> >>> 
> >>> nova-<account>-<instance uuid>
> >>> 
> >>> any different than:
> >>> 
> >>> AAAABBBB-CCCC-DDDD-EEEE-FFFFGGGGHHHH
> >>> 
> >>> Where AAAA/BBBB/CCCC (or some subset of them) are reserved/regulated?
> >> 
> >> Nothing, if DDDD-EEEE-FFFFGGGGHHHH is a full UUID. If we compare to
> >> swift, the account prefix is a UUID too. The account prefix could be
> >> fixed for a session or passed in to every request depending on how
> >> things are decided.
> > 
> > 	<sigh>
> > 
> > 	It's a shame that the ipv6 proposal was never more fully considered. That would handle the uniqueness, with the added benefit of providing simple zone routing via DNS, with the exact same 128-bit/32 char size.
> 
> I don't I remember that proposal, but that's such a neat idea.  Was anything discussed at all in Santa Clara regarding encoding zone information in the instance identifier?  I apparently missed the instance identifier discussion somehow.
> 
> - Chris
> 
> 
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