Tried using in production, failed really badly performance-wise (granted, it wasn't a good fit - cardinality was high). Replaced with PostgreSQL and I'm seeing 2+ orders of magnitude improvement on c4.large vs r4.8xlarge before..
Sounds like you were using the wrong tool for the job. Influx is not for high cardinality data.
https://docs.influxdata.com/influxdb/v1.1/guides/hardware_si...
quite a difference!