I’ve installed a full druid stack (0.9.0), and I’m streaming events into it from kafka (0.8.2.2) topics via tranquility (0.8).
The events are indexed in “hours” segments.
it works pretty well, but some times (I am not able to describe a reproductible use case :’( )
All I can say is that I have:
9 indexing slots ( 6 in uses max)
3 topics ( up to 20 k event / s in one)
Sometime (?) I see some events are rejected (tranquility log), I can see that no indexing task exists , but slots are available. This issue is transient but annoying.
Data node are not replicated.
Any idea where I can start to look at ?