rkhachatryan opened a new pull request #10847: [FLINK-15578][connectors/jdbc] JDBC exactly once sink URL: https://github.com/apache/flink/pull/10847 ## What is the purpose of the change Implement JDBC sink with exactly once semantics. ExistingTwoPhaseCommitFunction is not currently used (considering to use). ## Brief change log - *use XA transactions to provide exactly once guarantees* - *expose existing JDBC sinks to achieve consistency of public API* ## Verifying this change This change added tests and can be verified as follows: - *Added end-to-end test for happy flow (derby db)* - *Added integration tests for varous failure scenarios (derby, h2)* - *Added unit tests* ## Does this pull request potentially affect one of the following parts: - Dependencies: add h2 and flink-streamin-java in test scope of flink-jdbc - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: yes - The serializers: yes (XID) - The runtime per-record code paths (performance sensitive): yes (for records going through the sink) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? yes - If yes, how is the feature documented? docs , JavaDocs
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