[jira] Commented: (HADOOP-4603) Installation on Solaris needs additional PATH setting

["Kohsuke Kawaguchi (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-4603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12682090#action_12682090 ] 

Kohsuke Kawaguchi commented on HADOOP-4603:
-------------------------------------------

I think a better change is for Hadoop to simply try /usr/ucb/whoami if exec whoami fails. This code executes only once, so I don't see any downside of trying multiple locations for better user experience.

Another possibility is to use JNA (http://jna.dev.java.net/) and make a libc call from within Java.

> Installation on Solaris needs additional PATH setting
> -----------------------------------------------------
>
>                 Key: HADOOP-4603
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4603
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.18.2
>         Environment: Solaris 10 x86
>            Reporter: Jon Brisbin
>         Attachments: 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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