Taar-lite dev server is down

[AlexandraMoga]

STR:

1. Send a request to the taar-lite endpoint on -dev

   https://taar.dev.mozaws.net/taarlite/api/v1/addon_recommendations/{73a6fe31-595d-460b-a920-fcc0f8843232}/

   Actual result: An internal server error is received

Expected result: Add-on recommendations (if any) based on the request sent are received in the response

Notes:

• full error description:

  <title>500 Internal Server Error</title>
  <h1>Internal Server Error</h1>
  <p>The server encountered an internal error and was unable to complete your request.  Either the server is overloaded or there is an error in the application.</p>

• reproduced only on the -dev server

[crankycoder]

The redis caching layer I put in had 2 separate bugs. One was a concurrency issue and the other was a performance issue. I've since backed out the redis cache in favor of a process local caching strategy.

[AlexandraMoga]

Taar-lite dev server seems to be back on. I'm marking this as verified fixed.