In the same boat. I tried Druid as well which was almost a better solution but lacked the flexibility and maturity. We are using Postgres + citus + some HLL. O

In the same boat. I tried Druid as well which was almost a better solution but lacked the flexibility and maturity. We are using Postgres + citus + some HLL. Our success is probably because we just have a lot more experience with Postgres. I still haven't tried HBase though.