Hyunsik Choi created TAJO-1959:
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             Summary: Improve AWS S3 file system support
                 Key: TAJO-1959
                 URL: https://issues.apache.org/jira/browse/TAJO-1959
             Project: Tajo
          Issue Type: Improvement
          Components: S3, Storage
            Reporter: Hyunsik Choi


We need to improve AWS S3 support. As you know, S3 has different 
characteristics as follows:
 * No move operation. Move is emulated by copy and remove.
 * too slow directory listing 
 * unnecessary locality (i.e., always remote access)
 * eventual consistency

Emulating S3 via just HDFS implementation may cause lots of performance 
degradation. We need to mitigate the performance degradation points.

This is an umbrella issue to track sub tasks.

 * https://www.qubole.com/blog/product/optimizing-hadoop-for-s3-part-1/



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