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https://issues.apache.org/jira/browse/HADOOP-6605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12839958#action_12839958
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Allen Wittenauer commented on HADOOP-6605:
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Why doesn't this try the java that is the path? Why doesn't this verify that
$JAVA_HOME/bin/java actually works? Shouldn't it verify that it found JDK6 or
better? Why is the error message RH-based specific? Heck, why have the "please
download" message at all?
> Improve JAVA_HOME detection and handling in hadoop-config
> ---------------------------------------------------------
>
> Key: HADOOP-6605
> URL: https://issues.apache.org/jira/browse/HADOOP-6605
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 0.20.2
> Reporter: Chad Metcalf
> Assignee: Chad Metcalf
> Attachments: HADOOP-6605.patch
>
>
> JAVA_HOME can be set in hadoop-env.sh and hadoop-config.sh should respect
> this. hadoop-config will source hadoop-env after it determines a config
> directory. If JAVA_HOME still isn't set, it will try to guess one from a list
> of Linux usual locations. If one still isn't set it will quit with a verbose
> error message.
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