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https://issues.apache.org/jira/browse/HADOOP-6604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12839963#action_12839963
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Allen Wittenauer commented on HADOOP-6604:
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This patch breaks if any hadoop core jar is in .. rather than the one we care
about.
> Improve HADOOP_HOME detection and handling in hadoop-config
> -----------------------------------------------------------
>
> Key: HADOOP-6604
> URL: https://issues.apache.org/jira/browse/HADOOP-6604
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 0.20.2
> Reporter: Chad Metcalf
> Assignee: Chad Metcalf
> Priority: Minor
> Attachments: HADOOP-6604.patch
>
>
> If HADOOP_HOME is not set by the time hadoop-config is sourced we should try
> to guess it. Generally speaking hadoop-config.sh is in bin and HADOOP_HOME
> should generally be .. from there. Additionally we can do some verification
> of this guess by looking for jars in HADOOP_HOME.
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