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From "Sahil Takiar (Jira)" <>
Subject [jira] [Assigned] (HIVE-16295) Add support for using Hadoop's S3A OutputCommitter
Date Fri, 03 Jan 2020 15:54:00 GMT


Sahil Takiar reassigned HIVE-16295:

    Assignee:     (was: Sahil Takiar)

> Add support for using Hadoop's S3A OutputCommitter
> --------------------------------------------------
>                 Key: HIVE-16295
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: 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-16295.6.patch, HIVE-16295.7.patch, HIVE-16295.8.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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