I can't speak to the OP's performance, but Snowplow[1] may be good for your use. It's a bit more general purpose than just pure web analytics, and doesn't come

I can't speak to the OP's performance, but Snowplow[1] may be good for your use. It's a bit more general purpose than just pure web analytics, and doesn't come with the reporting interface. But as far as the data collection and storage at scale aspect, it's fantastic. [1] https://snowplowanalytics.com/products/snowplow-open-source/ https://snowplowanalytics.com/products/snowplow-open-source/