Sahil Takiar updated HIVE-16295:
    Attachment: HIVE-16295.5.patch

> Add support for using Hadoop's S3A OutputCommitter
> --------------------------------------------------
>                 Key: HIVE-16295
>                 URL: https://issues.apache.org/jira/browse/HIVE-16295
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Sahil Takiar
>            Assignee: Sahil Takiar
>            Priority: Major
>         Attachments: HIVE-16295.1.WIP.patch, HIVE-16295.2.WIP.patch, 
> HIVE-16295.3.WIP.patch, HIVE-16295.4.patch, HIVE-16295.5.patch
> Hive doesn't have integration with Hadoop's {{OutputCommitter}}, it uses a 
> {{NullOutputCommitter}} and uses its own commit logic spread across 
> {{FileSinkOperator}}, {{MoveTask}}, and {{Hive}}.
> The Hadoop community is building an {{OutputCommitter}} that integrates with 
> S3Guard and does a safe, coordinate commit of data on S3 inside individual 
> tasks (HADOOP-13786). If Hive can integrate with this new {{OutputCommitter}} 
> there would be a lot of benefits to Hive-on-S3:
> * Data is only written once; directly committing data at a task level means 
> no renames are necessary
> * The commit is done safely, in a coordinated manner; duplicate tasks (from 
> task retries or speculative execution) should not step on each other

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