I have recently shifted to OSM
I have setup a basic tile server using mbtiles exported from tilemill.
Since mbtiles are internally sqlite db ,it may not be suitable for heavy traffic sites.
I have also seen http://switch2osm.org/serving-tiles/manually-building-a-tile-server/ .But,I am not sure which one to go with
Also i need dynamically changing tiles .I mean colors of roads changing based on some parameter in the postgre database every 1 min or so
How should i go about it?