Yonger created HADOOP-15087:
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Summary: Write directly 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
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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