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https://issues.apache.org/jira/browse/HDFS-6214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13971524#comment-13971524
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Daryn Sharp commented on HDFS-6214:
-----------------------------------
Per an earlier comment, that stackoverflow thread was the primary source of
information used to fix the problem.
> Webhdfs has poor throughput for files >2GB
> ------------------------------------------
>
> Key: HDFS-6214
> URL: https://issues.apache.org/jira/browse/HDFS-6214
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HDFS-6214.patch
>
>
> For the DN's open call, jetty returns a Content-Length header for files <2GB,
> and uses chunking for files >2GB. A "bug" in jetty's buffer handling results
> in a ~8X reduction in throughput.
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