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Federico Valeri commented on KAFKA-17926: ----------------------------------------- > If users configure `max.in.flight.requests.per.connection>5`, the idempotent > will be disabled Yes, but that's not the default configuration, as used changed max.in.flight.requests.per.connection. Are you suggesting that idempotent should be the only option available? > Improve the documentation explaining why > max.in.flight.requests.per.connection should not exceed 5. > --------------------------------------------------------------------------------------------------- > > Key: KAFKA-17926 > URL: https://issues.apache.org/jira/browse/KAFKA-17926 > Project: Kafka > Issue Type: Improvement > Reporter: Chia-Ping Tsai > Assignee: PoAn Yang > Priority: Minor > > We should highlight that the server [0] retains record metadata for the 5 > most recent batches, so sending too many requests to a node simultaneously > can break idempotence. > [0] > https://github.com/apache/kafka/blob/af53758746485daa06c4d4366036c04f7f9f0e63/storage/src/main/java/org/apache/kafka/storage/internals/log/ProducerStateEntry.java#L32 -- This message was sent by Atlassian Jira (v8.20.10#820010)