[
https://issues.apache.org/jira/browse/HADOOP-860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639383#action_12639383
]
Steve Loughran commented on HADOOP-860:
---------------------------------------
So on Ubuntu 8.10 any script that goes
#!/bin/sh
at the front is going to break? That's an Ubuntu regression, which could break
a lot of things, who end up fielding the support calls
(pause)
yes, they've noticed: http://brainstorm.ubuntu.com/idea/2225/
but if you follow through, it's a WONTFIX
https://bugs.launchpad.net/ubuntu/+source/dash/+bug/61463
https://bugs.launchpad.net/ubuntu/+source/dash/+bug/141481
"all scripts are expected to say #!/bin/bash ; because if you want bash, you
had better ask for it explicitly."
Looking at the ubuntu discussion, their view is code that assumes that /bin/sh
-> bash contains the bug; not Ubuntu, which is only required to link to a
POSIX-compliant version of sh, not bash. From that point of view, if the hadoop
scripts conatin bash-isms, then, yes, it is the hadoop shell scripts that are
at fault. This doesn't mean that the Ubuntu changes are acceptable, only that
they are defensible.
> 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 $"${@// /\\ }" \
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
