gistfile1.txt

STEP 1
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cache hotplays.json (user centeric) in redis or as a static file

When hotplays.json is hit:
  serve cached copy
  fire off a worker to re-cache it



STEP 2
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When a change happens to a 'watched' fields on any of these:

* hotplay
* user
* coach
* industry

We will get all the users affected and fire off a worker to update their json