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https://issues.apache.org/jira/browse/SPARK-29506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh resolved SPARK-29506.
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Resolution: Won't Fix
> Use dynamicPartitionOverwrite in FileCommitProtocol when insert into hive
> table
> -------------------------------------------------------------------------------
>
> Key: SPARK-29506
> URL: https://issues.apache.org/jira/browse/SPARK-29506
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: L. C. Hsieh
> Assignee: L. C. Hsieh
> Priority: Major
>
> When insert overwrite into hive table, enabling dynamicPartitionOverwrite
> when initializing FileCommitProtocol.
> HadoopMapReduceCommitProtocol uses FileOutputCommitter to commit job output
> files.
> FileOutputCommitter continues do FileSystem.listStatus for directories in
> partitions, recursively, and commits job output leaf files.
> It is inefficient when dynamically overwritting many partitions and files.
> HadoopMapReduceCommitProtocol, when dynamicPartitionOverwrite is enabled,
> writes to staging dir dynamically, and commits written partition directories,
> instead of leaf files.
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