best place to clear cache when restarting django server

Question

I want memcached to be flushed on every restart/reload of django server. I use cherrypy for production and builtin server for development.

I would add this to settin

Answer 1

You typically only wan't to invalidate your caches if the code changes in a way that requires a new cache. Not on every restart.

This is best handled by using the Django feature: settings.CACHES.VERSION, and increase that number every time you change the code that changes the format of cached data. That way, on a deploy, you automatically will use a fresh cache when you deploy new code, but keep the cache if you're code is cache-compatible with the previous code.