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Posted to issues@spark.apache.org by "Yuanjian Li (Jira)" <ji...@apache.org> on 2020/06/02 18:23:00 UTC

[jira] [Created] (SPARK-31894) Introduce UnsafeRow format validation for streaming state store

Yuanjian Li created SPARK-31894:
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             Summary: Introduce UnsafeRow format validation for streaming state store
                 Key: SPARK-31894
                 URL: https://issues.apache.org/jira/browse/SPARK-31894
             Project: Spark
          Issue Type: Bug
          Components: Structured Streaming
    Affects Versions: 3.1.0
            Reporter: Yuanjian Li


Currently, Structured Streaming directly puts the UnsafeRow into StateStore without any schema validation. It's a dangerous behavior when users reusing the checkpoint file during migration. Any changes or bug fix related to the aggregate function may cause random exceptions, even the wrong answer, e.g SPARK-28067.

Here we introduce an UnsafeRow format validation for the state store.



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