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Date: Mon, 2 Nov 2009 20:14:59 +0000 (UTC)
From: "Zheng Shao (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Subject: [jira] Commented: (HIVE-902) cli.sh can not correctly identify
 Hadoop minor version numbers less than 20
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    [ https://issues.apache.org/jira/browse/HIVE-902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12772641#action_12772641 ] 

Zheng Shao commented on HIVE-902:
---------------------------------

Please replace [0-9]+ with [[:digit:]]+ in the previous comment - that was for debugging.

> cli.sh can not correctly identify Hadoop minor version numbers less than 20
> ---------------------------------------------------------------------------
>
>                 Key: HIVE-902
>                 URL: https://issues.apache.org/jira/browse/HIVE-902
>             Project: Hadoop Hive
>          Issue Type: Bug
>            Reporter: Carl Steinbach
>            Assignee: Carl Steinbach
>             Fix For: 0.4.1, 0.5.0
>
>         Attachments: HIVE-902.1.patch, HIVE-902.2.patch
>
>
> cli.sh uses the following logic to detect the version of hadoop:
>   version=$($HADOOP version | awk '{print $2;}');
>   if [[ $version =~ "^0\.17" ]] || [[ $version =~ "^0\.18" ]] || [[ $version =~ "^0.19" ]]; then
>       exec $HADOOP jar $AUX_JARS_CMD_LINE ${HIVE_LIB}/hive_cli.jar $CLASS $HIVE_OPTS "$@"
>   else
>       # hadoop 20 or newer - skip the aux_jars option. picked up from hiveconf
>       exec $HADOOP jar ${HIVE_LIB}/hive_cli.jar $CLASS $HIVE_OPTS "$@" 
>   fi
> Apparently bash doesn't expect you to quote the regex:
> % ./bash -version
> GNU bash, version 4.0.0(1)-release (i386-apple-darwin9.8.0)
> % hadoop version
> Hadoop 0.19.0
> Subversion https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.19 -r 713890
> Compiled by ndaley on Fri Nov 14 03:12:29 UTC 2008
> % version=$(hadoop version | awk '{print $2;}')
> % echo $version
> 0.19.0 https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.19 by
> % [[ $version =~ "^0\.19" ]] && echo "Yes" || echo "No"
> No
> % [[ $version =~ "^0.19" ]] && echo "Yes" || echo "No"
> No
> % [[ $version =~ ^0.19 ]] && echo "Yes" || echo "No"
> Yes

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