What happens after broker reaches disk write limit

Hi, My Kafka version is 0.8.2.2 Replica factor is 2. auto.leader.rebalance.enable=true I stopped a broker in my cluster. After a few minutes I started this broker. The broker was busy catching up huge lag and reached 120MB/s disk write limit. Additionally there are 23 partitions whose only undead

Users group in quota

I want to set quotas configuration for my Kafka 0.10.1 cluster but I have some questions. 1. How to set 'user' group? From documentation, 'In a cluster that supports unauthenticated clients, user principal is a grouping of unauthenticated users chosen by the broker using a configurable PrincipalBu