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https://issues.apache.org/jira/browse/HDFS-9384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14993341#comment-14993341
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Hudson commented on HDFS-9384:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #636 (See 
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/636/])
HDFS-9384. TestWebHdfsContentLength intermittently hangs and fails due 
(cnauroth: rev 66c096731052fb187dc49f5bcaec8432c4b92d0c)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/web/TestWebHdfsContentLength.java


> TestWebHdfsContentLength intermittently hangs and fails due to TCP 
> conversation mismatch between client and server.
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-9384
>                 URL: https://issues.apache.org/jira/browse/HDFS-9384
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>            Priority: Minor
>             Fix For: 2.8.0
>
>         Attachments: HDFS-9384.001.patch, HDFS-9384.002.patch, 
> HDFS-9384.003.patch
>
>
> {{TestWebHdfsContentLength}} runs a simple hand-coded HTTP server in a 
> background thread to simulate some WebHDFS server responses.  In some 
> environments (notably Windows), I have observed that the test can hang and 
> fail intermittently.  The root cause is that the server fails to fully 
> consume the client's input.  This causes a mismatch in the TCP conversation 
> state, and ultimately the client side hangs, then aborts after the 60-second 
> socket timeout.



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