Sensible spec for Overpass APi instance
Does anyone have an idea of a 'sensible' spec for a global Overpass API instance? I am [doing some research][1] into Big Data techniques for OSM, and would like to use Overpass as a comparator system, but a lot of the installation details seem to be quite old, so I was wondering if anyone had done it recently and was able to give a reasonable spec and any idea of how long things might take.
Many thanks
Stephen
[1]: https://lists.openstreetmap.org/pipermail/dev/2015-January/028227.html