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https://issues.apache.org/jira/browse/HADOOP-4603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756793#action_12756793
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Allen Wittenauer commented on HADOOP-4603:
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Calling /usr/ucb/whoami directly is definitely the way to go, IMO. It is going
to exist on all but the most hardened of Solaris boxes.
> Installation on Solaris needs additional PATH setting
> -----------------------------------------------------
>
> Key: HADOOP-4603
> URL: https://issues.apache.org/jira/browse/HADOOP-4603
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 0.18.2
> Environment: Solaris 10 x86
> Reporter: Jon Brisbin
> Attachments: HADOOP-4603, id_instead_of_whoami.diff
>
>
> A default installation as outlined in the docs won't start on Solaris 10 x86.
> The "whoami" utility is in path "/usr/ucb" on Solaris 10, which isn't in the
> standard PATH environment variable unless the user has added that
> specifically. The documentation should reflect this.
> Solaris 10 also seemed to throw NPEs if you didn't explicitly set the IP
> address to bind the servers to. Simply overriding the IP address fixes the
> problem.
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