KEY POINTS
  • Microsoft's Azure Databricks service was announced in 2017.
  • Microsoft has previously done deals with open-source companies like Hortonworks, and it recently acquired an open-source database company, Citus Data.
Microsoft CEO Satya Nadella at a company event in San Francisco in 2014.

Once upon a time, Silicon Valley start-ups were afraid of Microsoft, or scorned it as irrelevant.

That's changed under Satya Nadella, according to investor Ben Horowitz, whose firm Andreessen Horowitz just co-invested alongside Microsoft in Databricks, a start-up with software for processing large-scale data inpublic clouds.