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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-6605) Add JAVA_HOME detection to hadoop-config
Date Wed, 18 May 2011 19:30:47 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13035609#comment-13035609
] 

Daryn Sharp commented on HADOOP-6605:
-------------------------------------

-1: Only in that I don't like the logic as it would apply to OS X, but I do really like the
concept.  Minor point is /Library/Java/Home was deprecated in 10.5 in favor of /usr/libexec/java_home.
 Ignoring that, if for some reason I had a copy of java in any of the myriad of directories
listed prior to /Library/Java/Home, then this patch will pick that (wrong) version of java,
instead of the one I set in "Java Preferences".



> Add JAVA_HOME detection to hadoop-config
> ----------------------------------------
>
>                 Key: HADOOP-6605
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6605
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Chad Metcalf
>            Assignee: Eli Collins
>            Priority: Minor
>             Fix For: 0.22.0
>
>         Attachments: HADOOP-6605.patch, hadoop-6605-1.patch
>
>
> The commands that source hadoop-config.sh currently bail with an error if JAVA_HOME is
not set. Let's detect JAVA_HOME (from a list of locations on various OS types) if JAVA_HOME
is not already set by hadoop-env.sh or the environment. This way users don't have to manually
configure it.

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