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From "Raghu Angadi (JIRA)" <>
Subject [jira] [Created] (BEAM-2720) Exact-once Kafka sink
Date Thu, 03 Aug 2017 19:02:00 GMT
Raghu Angadi created BEAM-2720:

             Summary: Exact-once Kafka sink
                 Key: BEAM-2720
             Project: Beam
          Issue Type: New Feature
          Components: sdk-java-extensions
            Reporter: Raghu Angadi
            Assignee: Raghu Angadi

Kafka 0.11 added support for transactions which allows end-to-end exactly-once semantics.
Beam's KafkaIO users can benefit from these while using runners that support exactly-once

I have an implementation of EOS support for Kafka sink :
It has two shuffles and builds on Beam state-API and checkpoint barrier between stages (as
in Dataflow). Pull request has a longer description.

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