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https://issues.apache.org/jira/browse/HDFS-13936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16635400#comment-16635400
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Hudson commented on HDFS-13936:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #15093 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/15093/])
HDFS-13936. Multipart upload to HDFS to support 0 byte upload. (ehiggs: rev
6fab6886f652492573734b832ca0375459a82775)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystemMultipartUploader.java
* (edit)
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractMultipartUploaderTest.java
> 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
> Priority: Major
> Attachments: HDFS-13936.01.patch
>
>
> 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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