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From "Rajesh Balamohan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-13432) S3A: Consider using TransferManager.download for copyToLocalFile
Date Wed, 27 Jul 2016 06:49:20 GMT
Rajesh Balamohan created HADOOP-13432:

             Summary: S3A: Consider using TransferManager.download for copyToLocalFile
                 Key: HADOOP-13432
                 URL: https://issues.apache.org/jira/browse/HADOOP-13432
             Project: Hadoop Common
          Issue Type: Improvement
          Components: fs/s3
            Reporter: Rajesh Balamohan
            Priority: Minor

Currently it relies on the default implementation of FileSystem. But it would be good to explore
using TransferManager.download() (Ref: https://java.awsblog.com/post/Tx3Z7NO7C2TVLB/Parallelizing-Large-Downloads-for-Optimal-Speed
for recent aws-sdk-java).  When aws-sdk version is bumped it,it would automatically get the
benefit of parallel download sas well.

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