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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9232) JniBasedUnixGroupsMappingWithFallback fails on Windows with UnsatisfiedLinkError
Date Mon, 04 Mar 2013 22:25:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592738#comment-13592738
] 

Chris Nauroth commented on HADOOP-9232:
---------------------------------------

Quick recap: we have +1 from 2 contributors, and there are no blocking issues remaining on
this patch.  [~sureshms], we are ready for review from a committer.  Thank you.

                
> 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
>         Attachments: HADOOP-9232.branch-trunk-win.jnigroups.2.patch, HADOOP-9232.branch-trunk-win.jnigroups.3.patch,
HADOOP-9232.branch-trunk-win.jnigroups.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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