Hi @warkolm ,
I'd like to return to this topic if we could. I have installed x-pack and am still seeing coordinator nodes dying periodically by running out of heap. Am attaching screenshots to provide more context:
Our workload is logging to daily indices and the flow rate you see in the screenshots is about normal. The ingest nodes, atm, work as coordinator nodes only. They've also been allocated larger heaps but that hasn't resolved the problem. It's not clear exactly what is exhausting the heap or what steps we should take to remedy it...
Regards,
D