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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6630) hadoop-config.sh fails to get executed if hadoop wrapper scripts are in path
Date Fri, 12 Mar 2010 19:49:27 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844639#action_12844639

Allen Wittenauer commented on HADOOP-6630:

Actually, I misspoke a bit. It will be full path if it comes from $PATH.  If you call with
a relative path, it will contain the relative path.

So to be more explicit:

if I put this code:


in $HOME/bin and make sure $HOME/bin is in my path, you'll see the following:

awittena-mn:bin awittena$ testexec

awittena-mn:~ awittena$ bin/testexec

awittena-mn:~ awittena$ cd bin && testexec

awittena-mn:~ awittena$ cd bin && ./testexec

So the cd+pwd combo is still needed, but this should fix the "in the $PATH" issue.  It is
a shame that bash hid the "can't find hadoop-config.sh" error for the past few years.  If
you run it with -x set, you'll see it tho.

> hadoop-config.sh fails to get executed if hadoop wrapper scripts are in path
> ----------------------------------------------------------------------------
>                 Key: HADOOP-6630
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6630
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.20.2
>            Reporter: Allen Wittenauer
>         Attachments: HADOOP-6630.txt
> If the hadoop/bin commands are in the path, hadoop-config.sh doesn't executed until much
later in the stack because $0 lacks a path.

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