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Posted to dev@flink.apache.org by "Fabian Paul (Jira)" <ji...@apache.org> on 2022/02/14 09:25:00 UTC

[jira] [Created] (FLINK-26118) AsyncSinks do not support downscaling with state

Fabian Paul created FLINK-26118:
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             Summary: AsyncSinks do not support downscaling with state
                 Key: FLINK-26118
                 URL: https://issues.apache.org/jira/browse/FLINK-26118
             Project: Flink
          Issue Type: Bug
          Components: Connectors / Common
    Affects Versions: 1.15.0
            Reporter: Fabian Paul


Currently, the AsyncSinkWriter assumes to always be restored exactly from only one previous writer state but in case of a downscaling after a snapshot a writer will receive multiple states.

 

https://github.com/apache/flink/blob/c60eb0c3b4bf7dc045dd7a1da2080c7befebb8dc/flink-connectors/flink-connector-base/src/main/java/org/apache/flink/connector/base/sink/writer/AsyncSinkWriter.java#L438



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