[xaritas]

In terms of languages that facilitate doing work concurrently or in parallel with the HTTP request/response cycle:

  - Java / Scala / Clojure
  - Go
  - Erlang (add Elixir if you are comfortable with its maturity)

Not meant to be an exhaustive list of languages. Celery is great but there are plenty of situations where chucking units of work into a job queue or running a cron job feels like an incomplete solution.

[shazow]

These for the most part don't help you persist/offload/schedule asynchronous jobs off the main process. If your process dies or gets restarted, the async job dies with it. Celery persists, queues, schedules and distributes jobs for you, it's different.

For something more similar to Go/Java/Scala/Clojure/whatever, you can use Python's gevent or asyncio.