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https://issues.apache.org/jira/browse/HADOOP-15087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated HADOOP-15087:
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Summary: S3A to support writing directly to the destination dir without
creating temp directory to avoid rename (was: Write directly without creating
temp directory to avoid rename )
> S3A to support writing directly to the destination dir without creating temp
> directory to avoid rename
> -------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-15087
> URL: https://issues.apache.org/jira/browse/HADOOP-15087
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/s3
> Affects Versions: 3.0.0
> Reporter: Yonger
>
> Rename in workloads like Teragen/Terasort who use Hadoop default
> outputcommitters really hurt performance a lot.
> Stocator announce it doesn't create the temporary directories any all, and
> still preserves Hadoop's fault tolerance. I add a switch when creating file
> via integrating it's code into s3a, I got 5x performance gain in Teragen and
> 15% performance improvement in Terasort.
>
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