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From "Lars George (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4243) HADOOP_HOME should be auto-detected
Date Fri, 23 Sep 2011 08:44:26 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13113268#comment-13113268
] 

Lars George commented on HBASE-4243:
------------------------------------

Added HBASE-4467 to handle naming issue.

> HADOOP_HOME should be auto-detected
> -----------------------------------
>
>                 Key: HBASE-4243
>                 URL: https://issues.apache.org/jira/browse/HBASE-4243
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Roman Shaposhnik
>            Assignee: Roman Shaposhnik
>            Priority: Minor
>         Attachments: HBASE-4243-2.patch.txt, HBASE-4243.patch.txt
>
>
> Now that HBASE-3465 has been integrated, perhaps we should try to auto-detect the HADOOP_HOME
setting if it is not given explicitly. Something along the lines of:
> {noformat}
> # check for hadoop in the path
> 141	HADOOP_IN_PATH=`which hadoop 2>/dev/null`
> 142	if [ -f ${HADOOP_IN_PATH} ]; then
> 143	  HADOOP_DIR=`dirname "$HADOOP_IN_PATH"`/..
> 144	fi
> 145	# HADOOP_HOME env variable overrides hadoop in the path
> 146	HADOOP_HOME=${HADOOP_HOME:-$HADOOP_DIR}
> 147	if [ "$HADOOP_HOME" == "" ]; then
> 148	  echo "Cannot find hadoop installation: \$HADOOP_HOME must be set or hadoop must
be in the path";
> 149	  exit 4;
> 150	fi
> {noformat}
> Thoughts?

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