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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4732) TestDFSUpgradeFromImage fails on Windows due to failure to unpack old image tarball that contains hard links
Date Tue, 23 Apr 2013 18:49:17 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE updated HDFS-4732:
-----------------------------------------

       Resolution: Fixed
    Fix Version/s: 3.0.0
           Status: Resolved  (was: Patch Available)

I have committed this.  Thanks, Chris!
                
> TestDFSUpgradeFromImage fails on Windows due to failure to unpack old image tarball that
contains hard links
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4732
>                 URL: https://issues.apache.org/jira/browse/HDFS-4732
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 3.0.0
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>            Priority: Minor
>             Fix For: 3.0.0
>
>         Attachments: hadoop-22-dfs-dir.tgz, HDFS-4732.1.patch
>
>
> On non-Windows, {{FileUtil#unTar}} is implemented using external Unix shell commands.
 On Windows, {{FileUtil#unTar}} is implemented in Java using commons-compress.  {{TestDFSUpgradeFromImage}}
uses a testing tarball image of an old HDFS layout version, hadoop-22-dfs-dir.tgz.  This file
contains hard links.  It appears that commons-compress cannot handle the hard links correctly.
 When it unpacks the file, each hard link ends up as a 0-length file.  This causes the test
to fail during cluster startup, because the 0-length block files are considered corrupt.

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