Kafka fetch.max.bytes vs max.partition.fetch.bytes understanding

Question

Did I understand the difference between fetch.max.bytes and max.partition.fetch.bytes configs correctly: 1st one limits a whole fetch response (that could consists of several topic/partitions data) 2nd limits data from every single partition in that composite response

So, is there no sense to set 2nd one higher that 1st?

I have read confluent docs: https://docs.confluent.io/platform/current/installation/configuration/consumer-configs.html

Answer 1

Yes, your understanding is correct. So, the default value of fetch.max.bytes (i.e 50 MB ) is also set higher than the max.partition.fetch.bytes(i.e. 1 MB).