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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3577) WebHdfsFileSystem can not read files larger than 24KB
Date Sun, 15 Jul 2012 17:42:34 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eli Collins updated HDFS-3577:
------------------------------

    Summary: WebHdfsFileSystem can not read files larger than 24KB  (was: webHdfsFileSystem
fails to read files with chunked transfer encoding)
    
> WebHdfsFileSystem can not read files larger than 24KB
> -----------------------------------------------------
>
>                 Key: HDFS-3577
>                 URL: https://issues.apache.org/jira/browse/HDFS-3577
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs client
>    Affects Versions: 2.0.0-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Blocker
>         Attachments: h3577_20120705.patch, h3577_20120708.patch, h3577_20120714.patch
>
>
> If reading a file large enough for which the httpserver running webhdfs/httpfs uses chunked
transfer encoding (more than 24K in the case of webhdfs), then the WebHdfsFileSystem client
fails with an IOException with message *Content-Length header is missing*.
> It looks like WebHdfsFileSystem is delegating opening of the inputstream to *ByteRangeInputStream.URLOpener*
class, which checks for the *Content-Length* header, but when using chunked transfer encoding
the *Content-Length* header is not present and  the *URLOpener.openInputStream()* method thrown
an exception.

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