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https://issues.apache.org/jira/browse/HIVE-16295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sahil Takiar reassigned HIVE-16295:
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> Add support for using Hadoop's 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
>
> 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 a {{OutputCommitter}} that integrates with
> S3Guard and does a safe, coordinate commit of data on S3 inside individual
> tasks. 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
> * Data is written within each task, so everything in does in parallel
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