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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7205) automatically determine JAVA_HOME on OS X
Date Tue, 22 Mar 2011 19:04:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13009788#comment-13009788
] 

Allen Wittenauer commented on HADOOP-7205:
------------------------------------------

-1

a) We've been avoiding OS-specific changes in the shells for a very long time, including one
to autodetect Java on various Linux distributions.  I see no reason to reverse this now. 
I've said it before and I'll say it again:  stuff like this should really go into an installer
that modifies hadoop-env.sh, not part of the base executable.

b) Given that Java is moving from Apple controlled to Oracle controlled on OS X, there is
a very good chance this command will disappear in a future release.

> automatically determine JAVA_HOME on OS X
> -----------------------------------------
>
>                 Key: HADOOP-7205
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7205
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 0.22.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>             Fix For: 0.23.0
>
>         Attachments: HADOOP-7205.patch
>
>
> OS X provides a java_home command that will return the user's selected jvm.  The hadoop-env.sh
should use this command if JAVA_HOME is not set.

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