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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2021/01/18 22:59:17 UTC

[GitHub] [iceberg] stevenzwu commented on pull request #2109: Flink: store watermark as iceberg table's property

stevenzwu commented on pull request #2109:
URL: https://github.com/apache/iceberg/pull/2109#issuecomment-762504937


   @dixingxing0 can you describe the motivation of checkpointing the watermarks in Flink state? 
   
   Ryan described our use of watermarks in snapshot metadata. They are used to indicate the data completeness on the ingestion path so that downstream batch consumer jobs can be triggered when data is complete for a window (like hourly).


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