Kamal Chandraprakash a056672f7c KAFKA-19599: Reduce the frequency of ReplicaNotAvailableException thrown to clients when RLMM is not ready (#20345) ... During broker restarts, the topic-based RemoteLogMetadataManager (RLMM) constructs the state by reading the internal `__remote_log_metadata` topic. When the partition is not ready to perform remote storage operations, then ReplicaNotAvailableException thrown back to the consumer. The clients retries the request immediately. This results in a lot of FETCH requests on the broker and utilizes the request handler threads. Using the CountdownLatch to reduce the frequency of ReplicaNotAvailableException thrown back to the clients. This will improve the request handler thread usage on the broker. Previously for one consumer, when RLMM is not ready for a partition, then ~9K FetchConsumer requests / sec are received on the broker. With this patch, the number of FETCH requests reduced by 95% to 600 / sec. Reviewers: Lan Ding <isDing_L@163.com>, Satish Duggana <satishd@apache.org>		2025-08-20 09:48:57 +05:30
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api/src	KAFKA-19523: Gracefully handle error while building remoteLogAuxState (#20201)	2025-07-23 19:29:31 +05:30
src	KAFKA-19599: Reduce the frequency of ReplicaNotAvailableException thrown to clients when RLMM is not ready (#20345)	2025-08-20 09:48:57 +05:30