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https://issues.apache.org/jira/browse/HADOOP-9902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14089353#comment-14089353
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Allen Wittenauer commented on HADOOP-9902:
------------------------------------------
I had a discussion with [~andrew.wang] last night around this patch. As part
of that discussion, two points came to light that I think are important for
everyone to understand:
* Yes, testing this patch on a single node is valuable. I'd even argue its
more valuable than testing at scale because now multiple daemons are exercising
the code on a single machine which should show any conflicts. Testing on more
than one node, where the nodes are configured the same, is basically exercising
the ssh code.... and that's about it.
* Even if you aren't comfortable with shell, your testing is still extremely
valuable. Take your existing *-env.sh files, pop them in, and see what works
and what doesn't work. Ideally, everything works without changes. If they
don't work, check the incompat list above. If it isn't listed, please add a
note here so I can see if this is a bug in the code or if it is something
missing from the release notes.
Thanks.
> Shell script rewrite
> --------------------
>
> Key: HADOOP-9902
> URL: https://issues.apache.org/jira/browse/HADOOP-9902
> Project: Hadoop Common
> Issue Type: Improvement
> Components: scripts
> Affects Versions: 3.0.0
> Reporter: Allen Wittenauer
> Assignee: Allen Wittenauer
> Labels: releasenotes
> Attachments: HADOOP-9902-10.patch, HADOOP-9902-11.patch,
> HADOOP-9902-12.patch, HADOOP-9902-13-branch-2.patch, HADOOP-9902-13.patch,
> HADOOP-9902-2.patch, HADOOP-9902-3.patch, HADOOP-9902-4.patch,
> HADOOP-9902-5.patch, HADOOP-9902-6.patch, HADOOP-9902-7.patch,
> HADOOP-9902-8.patch, HADOOP-9902-9.patch, HADOOP-9902.patch, HADOOP-9902.txt,
> hadoop-9902-1.patch, more-info.txt
>
>
> Umbrella JIRA for shell script rewrite. See more-info.txt for more details.
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