RE: Executive summary of: RE: hard questions: request routing

["Mark Day" <markday@cisco.com>]

> I missed the point when the metric was dismissed, though :(

I haven't yet seen any convergence on what the single common metric would
be. I tend toward agreement with Oliver's summary that we seem to have
implicitly dismissed that by our inability to determine the metric.

The single common metric seems to be an example of what my aerospace
colleagues refer to as "unobtainium" -- a wonderful substance with all sorts
of great properties, which unfortunately doesn't exist.

While it can be useful to do unobtainium-based exercises, at some point you
have to start translating those designs into realizable ones.  Unless
someone believes that we actually approached rough consensus on a single
underlying metric and I missed it (which is quite possible!), I'm inclined
to say that we have spent enough time on architectures that depend on this
particular form of unobtainium.

--Mark