Steve Loughran created HDFS-13936:
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Summary: multipart upload to HDFS to support 0 byte upload
Key: HDFS-13936
URL: https://issues.apache.org/jira/browse/HDFS-13936
Project: Hadoop HDFS
Issue Type: Sub-task
Components: fs, hdfs
Affects Versions: 3.2.0
Reporter: Steve Loughran
Assignee: Ewan Higgs
MPUs to HDFS fail as you can't concat an empty block.
Whatever uploads to HDFS needs to recognise that specific case "0-byte file"
and rather than try and concat things, just create a 0-byte file there.
Without this, you can't use MPU as a replacement for distcp or alternative
commit protocols.
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