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From "Brian Bockelman (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-860) start-all.sh fails on Ubuntu 6.10
Date Tue, 14 Oct 2008 13:20:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639412#action_12639412
] 

Brian Bockelman commented on HADOOP-860:
----------------------------------------

Agreed.

If we use a command that is not supported by a POSIX-compliant version of sh, and make the
assumption that /bin/sh = /bin/bash (which is not true), then we ought to explicitly ask for
bash...

Looks like a Hadoop bug to me.  Reopen?

> start-all.sh fails on Ubuntu 6.10
> ---------------------------------
>
>                 Key: HADOOP-860
>                 URL: https://issues.apache.org/jira/browse/HADOOP-860
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: scripts
>         Environment: Ubuntu 6.10 (and presumably Debian Etch)
>            Reporter: Shannon -jj Behrens
>            Assignee: Edward J. Yoon
>            Priority: Minor
>
> I'm using Hadoop on Ubuntu 6.10.  I ran into:
> $ start-all.sh
> starting namenode, logging to
> /usr/local/hadoop-install/hadoop/bin/../logs/hadoop-jj-namenode-jjinuxland.out
> /usr/local/hadoop-install/hadoop/bin/slaves.sh: 36: Syntax error: Bad
> substitution
> starting jobtracker, logging to
> /usr/local/hadoop-install/hadoop/bin/../logs/hadoop-jj-jobtracker-jjinuxland.out
> /usr/local/hadoop-install/hadoop/bin/slaves.sh: 36: Syntax error: Bad
> substitution
> Ubuntu 6.10 switched away from using bash for the default /bin/sh.
> The workaround is simple:
> (cd /bin && ln -sf bash sh)
> Nonetheless, it might be nice to update the script so that it works by
> default on Ubuntu since it is pretty popular.  I'm guessing that the
> change would be simple.  The offending line is:
> ssh $HADOOP_SSH_OPTS $slave $"${@// /\\ }" \

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