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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2021/12/17 08:57:00 UTC
[jira] [Assigned] (SPARK-37674) Reduce the output partition of output stage to avoid producing small files.
[ https://issues.apache.org/jira/browse/SPARK-37674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-37674:
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Assignee: (was: Apache Spark)
> 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: 3.0.0, 3.0.2, 3.0.3, 3.1.1, 3.2.0
> Reporter: weixiuli
> Priority: Major
>
> 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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