pycon2013 / realtime-geo.txt

- OpenStreetMap
- Mapnik, ??? (server side)
- OpenLayser, leaflet (client side)
- Geo stack: Varnish, nginx, gunicorn, TileStache, MemCached, Mapnik, postgresql
- For realtime you need stateful connection
    - polling is bad
- Need pubsub queue
    - Celery is awesome
- Change the stack to have node.js with Socket IO to give replies and Celery in
  the backend (see diagram)