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https://issues.apache.org/jira/browse/HADOOP-6605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13048651#comment-13048651
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Daryn Sharp commented on HADOOP-6605:
-------------------------------------
I'd like to succinctly reassert that it's unexpected behavior, on OS X, for a
java app to not honor the user's preference. FWIW, I've never had to
explicitly define JAVA_HOME for an app. For instance, Tomcat doesn't require
the user to explicitly define JAVA_HOME to start the server.
> 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,
> hadoop-6605-2.patch, hadoop-6605-3.patch, hadoop-6605-4.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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