[Kafka] partition of topic

### broker: 5, partition: 6, 1k/s (ok)


### broker: 5, partition: 20, 100k/s (not ok)
- partition
  ㄴ more than 100
  ㄴ broker * n (because skewed)

 

https://sori-nori.gitlab.io/docs/how-to-choose-the-number-of-partition-in-a-kafka-cluster/

Kafka Topic의 partition 수 정하기