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Posted to hdfs-dev@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2018/09/25 12:05:00 UTC

[jira] [Created] (HDFS-13940) Implement Multipart-aware discp-equivalent

Steve Loughran created HDFS-13940:
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             Summary: Implement Multipart-aware discp-equivalent
                 Key: HDFS-13940
                 URL: https://issues.apache.org/jira/browse/HDFS-13940
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: fs
    Affects Versions: 3.3.0
            Reporter: Steve Loughran


the per block upload would permit a high-performance distcp
* within the same FS
* when writing to object stores with multipart uploads
Implement this, if initially as a proof of concept to validate the completeness of the API

One thing to consider is throttling upload bandwidth better: there's the potential here to overload the long-haul links more here, even when uploading a few files (as the peark bandwidth which a single file being copied ma use isO(blocks))



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