hi Mark I've added the root cause to the jira ticket. We can continue the discussion there Best, Chia-Ping
Marcus Paget <[email protected]> 於 2026年2月28日週六 上午2:02寫道： > Hello Kafka Users and Developers, > > For KAFKA-19652 - Consumer throughput drops by 10 times with Kafka v3.9.0 > in ZK mode > > I wanted to understand if this is a known issue or an isolated edge case. > It was reported back in August 2025 and subsequently confirmed by 2 other > people, able to reproduce the throughput drop. Although nothing > specifically identifying as a blocker for upgrades to this version or > later. > > Having min.insync.replicas=2 I guess is fairly common, so this would > affect many installations. > > Thanks, > Mark >
