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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-6605) Add JAVA_HOME detection to hadoop-config
Date Mon, 13 Jun 2011 16:37:51 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eli Collins updated HADOOP-6605:
--------------------------------

    Attachment: hadoop-6605-4.patch

Thanks for the feedback guys. Patch attached uses double brackets and -x.

Allen, I think this patch addresses the specific concern you raised (searching too many directories,
the Linux stuff). This patch does pretty minimal work (just calls out to java_home). It does
still execute on each command, that's intentional and IMO OK because per above it's minimal
work and otherwise Hadoop would not notice when the user changed their JAVA_HOME preference.
Lemme know if you're -1 or -0.

> 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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