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https://issues.apache.org/jira/browse/SPARK-21400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Kruszewski updated SPARK-21400:
--------------------------------------
    Component/s:     (was: Spark Core)
                 SQL

> Spark shouldn't ignore user defined output committer in append mode
> -------------------------------------------------------------------
>
>                 Key: SPARK-21400
>                 URL: https://issues.apache.org/jira/browse/SPARK-21400
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Robert Kruszewski
>
> In https://issues.apache.org/jira/browse/SPARK-8578 we decided to override 
> user defined output committers in append mode. The reasoning was that there's 
> some output committers that can lead to correctness issues. Since then we 
> have removed DirectParquetOutputCommitter (the biggest known offender) from 
> codebase and rely on default implementations.
> I believe that we shouldn't be restricting this anymore and users should 
> understand that if they're overwriting this configuration they have tested 
> their committer for correctness. This unblocks using more sophisticated and 
> performant output committers without need to overwrite file format 
> implementations.



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