[jstephan]

Thanks for the wishes! Indeed it's rarely worth it to build an automated tuning tool: - Unless you operate at a massive scale (eg Dr Elephant + TuneIn projects, originally developed at LinkedIn) - Or you operate a big data platform yourself.

If you're curious about our ML approach, we gave a tech talk about it at last year's Spark Summit: https://databricks.com/session_eu19/how-to-automate-performa...