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Roman Khachatryan commented on FLINK-22141: ------------------------------------------- Thanks a lot [~ym], I agree with all the points you raised and created tickets to address them: FLINK-22288 (api), FLINK-22289 (docs). > Manually test exactly-once JDBC sink > ------------------------------------ > > Key: FLINK-22141 > URL: https://issues.apache.org/jira/browse/FLINK-22141 > Project: Flink > Issue Type: Test > Components: Connectors / JDBC > Reporter: Roman Khachatryan > Assignee: Yuan Mei > Priority: Blocker > Labels: release-testing > Fix For: 1.13.0 > > > In FLINK-15578, an API and its implementation were added to JDBC connector to > support exactly-once semantics for sinks. The implementation uses JDBC XA > transactions. > The scope of this task is to make sure: > # The feature is well-documented > # The API is reasonably easy to use > # The implementation works as expected > ## normal case: database is updated on checkpointing > ## failure and recovery case: no duplicates inserted, no records skipped > ## several DBs: postgressql, mssql, oracle (mysql has a known issue: > FLINK-21743) > ## concurrent checkpoints > 1, DoP > 1 > # Logging is meaningful -- This message was sent by Atlassian Jira (v8.3.4#803005)