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https://issues.apache.org/jira/browse/HADOOP-6272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14074619#comment-14074619
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Colin Patrick McCabe commented on HADOOP-6272:
----------------------------------------------
We no longer use the "whoami" command in Hadoop, so probably this is already
fixed-- with or without JNI.
> Incorrect UserName at Solaris because it has no "whoami" command by default
> ---------------------------------------------------------------------------
>
> Key: HADOOP-6272
> URL: https://issues.apache.org/jira/browse/HADOOP-6272
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security, util
> Affects Versions: 0.20.1, 0.21.0
> Environment: OS: SunOS 5.10
> Reporter: Urko Benito
> Attachments: PermissionChecker.java.diff, Shell.java.diff,
> UnixUserGroupInformation.java.diff, test-hadoop-security.tar.gz
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Solaris enviroment has no __whoami__ command, so the __getUnixUserName()__ at
> UnixUserGroupInformation class fails because it's calling to
> Shell.USER_NAME_COMMAND which is defines as "whoami".
> So it launched an Exception and set the default "DrWho" username ignoring all
> the FileSystem permissions.
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