Back in 2014 when i last used Cassandra, Netflix were using it for some kind of metrics store i believe. They also published the nicer-to-use client back then (

Back in 2014 when i last used Cassandra, Netflix were using it for some kind of metrics store i believe. They also published the nicer-to-use client back then (astyanx or something it was called - nicer API than Hector). My memory is letting me down here on specifics - in my defence it's been a long time since i answered questions on stack overflow about Cassandra. I absolutely loved working with the product even if the sharp edges cut me a few times (ultimately my own fault not Cassandra's).