[jhgg]

Strange - we use Druid at scale at work, and it doesn't really require much maintenance. In fact, for the most part aside from some incidents caused by our own misconfiguration, it buzzes away just fine. Runs on Kubernetes. Most annoying thing was tuning segment compaction.

It's actually quite nice - because since everything is stored on GCS/S3, it is mostly self healing, we can treat the historical as cattle and not pets.

We also run clickhouse, and unfortunately the above is not true - at least in our setup.