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https://issues.apache.org/jira/browse/HDFS-3794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13435048#comment-13435048
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Hudson commented on HDFS-3794:
------------------------------

Integrated in Hadoop-Hdfs-trunk #1135 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1135/])
    HDFS-3794. WebHDFS OPEN returns the incorrect Content-Length in the HTTP 
header when offset is specified and length is omitted.  Contributed by Ravi 
Prakash (Revision 1373193)

     Result = FAILURE
szetszwo : 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1373193
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/resources/DatanodeWebHdfsMethods.java

                
> WebHDFS Open used with Offset returns the original (and incorrect) Content 
> Length in the HTTP Header.
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-3794
>                 URL: https://issues.apache.org/jira/browse/HDFS-3794
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: webhdfs
>    Affects Versions: 0.23.3, 2.0.0-alpha, 2.1.0-alpha
>            Reporter: Ravi Prakash
>            Assignee: Ravi Prakash
>             Fix For: 2.2.0-alpha
>
>         Attachments: HDFS-3794.patch, HDFS-3794.patch
>
>
> When an offset is specified, the HTTP header Content Length still contains 
> the original file size. e.g. if the original file is 100 bytes, and the 
> offset specified it 10, then HTTP Content Length ought to be 90. Currently it 
> is still returned as 100.
> This causes curl to give error 18, and JAVA to throw ConnectionClosedException

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