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https://issues.apache.org/jira/browse/HDFS-3318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13415733#comment-13415733
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Tsz Wo (Nicholas), SZE commented on HDFS-3318:
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The Content-Length check will be removed by HDFS-3577.
> Hftp hangs on transfers >2GB
> ----------------------------
>
> Key: HDFS-3318
> URL: https://issues.apache.org/jira/browse/HDFS-3318
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 0.24.0, 0.23.3, 2.0.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Blocker
> Fix For: 0.23.3
>
> Attachments: HDFS-3318-1.patch, HDFS-3318.patch
>
>
> Hftp transfers >2GB hang after the transfer is complete. The problem appears
> to be caused by java internally using an int for the content length. When it
> overflows 2GB, it won't check the bounds of the reads on the input stream.
> The client continues reading after all data is received, and the client
> blocks until the server times out the connection -- _many_ minutes later. In
> conjunction with hftp timeouts, all transfers >2G fail with a read timeout.
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