Hello @HenningAndersen, thank you for reply, but unfortunately setting:
InitiatingHeapOccupancyPercent=30
ReservePercent=25
didn't help. I've also increased heap from 30G to 50G, but it doesn't help too:
Caused by: org.elasticsearch.common.breaker.CircuitBreakingException: [parent] Data too large, data for [<transport_request>] would be [53028227584/49.3gb], which is larger than the limit of [51002736640/47.5gb], real usage: [53028224688/49.3gb], new bytes reserved: [2896/2.8kb]
And I still doesn't understand what this error really mean - what is "transport_request" ? Is it size of one request ? (unlikely) Or it is a region where all requests stored ? (but 50G is to much for this too)
I have rather high index rate (around 100k/sec for 2 nodes)