KAFKA-19969: Add Per-Topic Observability Metrics for Remote Fetch Quota Enforcement

Open nandini12396 opened this issue 1 month ago • 1 comments

Remote fetch quota enforcement lacks per-topic visibility, making it difficult to identify which topics consume the most quota or experience throttling.

Add 4 new per-topic metrics:

RemoteFetchQuotaBytesPerSec: quota bytes consumed per topic
RemoteFetchQuotaThrottledPerSec: throttled requests per topic
RemoteFetchQuotaThrottleTimeMs: throttle time distribution
RemoteFetchSizeBytes: fetch size distribution

Dec 05 '25 13:12 nandini12396

@nandini12396 , adding new metrics (public API) needs to go through the KIP process: https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals.

Dec 10 '25 06:12 showuon