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History

Apurva Mehta bdf4cba047 KAFKA-4817; Add idempotent producer semantics ... This is from the KIP-98 proposal. The main points of discussion surround the correctness logic, particularly the Log class where incoming entries are validated and duplicates are dropped, and also the producer error handling to ensure that the semantics are sound from the users point of view. There is some subtlety in the idempotent producer semantics. This patch only guarantees idempotent production upto the point where an error has to be returned to the user. Once we hit a such a non-recoverable error, we can no longer guarantee message ordering nor idempotence without additional logic at the application level. In particular, if an application wants guaranteed message order without duplicates, then it needs to do the following in the error callback: 1. Close the producer so that no queued batches are sent. This is important for guaranteeing ordering. 2. Read the tail of the log to inspect the last message committed. This is important for avoiding duplicates. Author: Apurva Mehta <apurva@confluent.io> Author: hachikuji <jason@confluent.io> Author: Apurva Mehta <apurva.1618@gmail.com> Author: Guozhang Wang <wangguoz@gmail.com> Author: fpj <fpj@apache.org> Author: Jason Gustafson <jason@confluent.io> Reviewers: Jason Gustafson <jason@confluent.io>, Ismael Juma <ismael@juma.me.uk>, Jun Rao <junrao@gmail.com> Closes #2735 from apurvam/exactly-once-idempotent-producer		8 years ago
..
benchmarks	KAFKA-4843: More efficient round-robin scheduler	8 years ago
directory_layout	…
sanity_checks	KAFKA-4809: docker/run_tests.sh should set up /opt/kafka-dev to be the source directory	8 years ago
services	KAFKA-4817; Add idempotent producer semantics	8 years ago
tests	KAFKA-4817; Add idempotent producer semantics	8 years ago
utils	…
__init__.py	MINOR: Bump version to 0.11.0.0-SNAPSHOT	8 years ago
version.py	…