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Posted to issues@spark.apache.org by "weixiuli (Jira)" <ji...@apache.org> on 2021/12/17 08:14:00 UTC

[jira] [Created] (SPARK-37674) Reduce the output partition of output stage to avoid producing small files.

weixiuli created SPARK-37674:
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             Summary: Reduce the output partition of output stage to avoid producing small files.
                 Key: SPARK-37674
                 URL: https://issues.apache.org/jira/browse/SPARK-37674
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 3.2.0, 3.1.1, 3.0.3, 3.0.2, 3.0.0
            Reporter: weixiuli


The partition size of the finalStage with `DataWritingCommand` or
 `V2TableWriteExec` may use the ADVISORY_PARTITION_SIZE_IN_BYTES which is smaller one and  produce some small files, it may bad for production, we should use a new partition size for the finalStage with `DataWritingCommand` or `V2TableWriteExec` to avoid small files.



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