Combining their fondness for the show with some pretty incredible technical talent, Rackspace employees Paul Kehrer and Sean Schulte, together with designer Allie Young, built Frinkiac, a Simpsons-specific search engine (named for the show’s bespectacled Professor Frink), which indexes some three million screencaps from the show’s 15 seasons, matching each and every quote with the exact moment it was uttered.
.. “And when we suddenly had 3,000 concurrent users doing nearly 100 searches per second, things got rather compute intensive,” Kehrer said, understatedly.
python-redis-lock
Lock context manager implemented via redis SETNX/BLPOP
.. You would write your functions like this:
from django.core.cache import cache def function(): val = cache.get(key) if val: return val else: with cache.lock(key): val = cache.get(key) if val: return val else: # DO EXPENSIVE WORK val = ... cache.set(key, value) return val
HireFire: Autoscaling for your Heroku dynos
Load- and schedule-based scaling
for web- and worker dynos
Tutum: The Docker Platform for Dev and Ops
Build, deploy, and manage your apps across any cloud