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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-9232) JniBasedUnixGroupsMappingWithFallback fails on Windows with UnsatisfiedLinkError
Date Tue, 05 Mar 2013 02:23:13 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-9232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suresh Srinivas resolved HADOOP-9232.
-------------------------------------

       Resolution: Fixed
    Fix Version/s: trunk-win
     Hadoop Flags: Reviewed

Committed the patch to the branch.

Thank you Ivan!. Thank you Arpit, Chuan and Chris for the review.
                
> JniBasedUnixGroupsMappingWithFallback fails on Windows with UnsatisfiedLinkError
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-9232
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9232
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: native, security
>    Affects Versions: trunk-win
>            Reporter: Chris Nauroth
>            Assignee: Ivan Mitic
>             Fix For: trunk-win
>
>         Attachments: HADOOP-9232.branch-trunk-win.jnigroups.2.patch, HADOOP-9232.branch-trunk-win.jnigroups.3.patch,
HADOOP-9232.branch-trunk-win.jnigroups.patch, HADOOP-9232.patch
>
>
> {{JniBasedUnixGroupsMapping}} calls native code which isn't implemented properly for
Windows, causing {{UnsatisfiedLinkError}}.  The fallback logic in {{JniBasedUnixGroupsMappingWithFallback}}
works by checking if the native code is loaded during startup.  In this case, hadoop.dll is
present and loaded, but it doesn't contain the right code.  There will be no attempt to fallback
to {{ShellBasedUnixGroupsMapping}}.

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