KIP-124 — Request rate quotas

Accepted BrokerAdmin

KIP-124 introduces request-rate quotas to Kafka that throttle clients based on the CPU time their requests consume (network thread + I/O thread time), in addition to the existing byte-rate quotas. A consumer with `fetch.max.wait.ms=0` can send an unbounded number of small fetch requests, overwhelming broker threads without triggering byte-rate quotas.

Protocol Impact

Fetch · OffsetFetch

Details