The data analytics team at AdsWizz has been running Druid in production for more than 3 years now, powering realtime analytics for internal critical applications, reporting applications and external APIs. Working with our customer and other service consumers we have seen great success stories and we have seen things going wrong.
In this talk, I would like to share hard-learned lessons of adopting interactive analytics — Apache Druid specific. Afterwards, you will know how to properly use the database. What analytics use cases you may consider as good, bad and in between. How to properly model your data. How to deal with failures and properly approach the monitoring.