Piotr Nowojski created FLINK-7210:
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Summary: Add TwoPhaseCommitSinkFunction (implementing exactly-once
semantic in generic way)
Key: FLINK-7210
URL: https://issues.apache.org/jira/browse/FLINK-7210
Project: Flink
Issue Type: Improvement
Reporter: Piotr Nowojski
Assignee: Piotr Nowojski
To implement exactly-once sink there is a re-occurring pattern for doing it -
two phase commit algorithm. It is used both in `BucketedSink` and in `Pravega`
sink and it will be used in `Kafka 0.11` connector. It would be good to extract
this common logic into one class, both to improve existing implementation (for
exampe `Pravega`'s sink doesn't abort interrupted transactions) and to make it
easier for the users to implement their own custom exactly-once sinks.
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