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https://issues.apache.org/jira/browse/HADOOP-9902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13785489#comment-13785489
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Allen Wittenauer commented on HADOOP-9902:
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Agreed. The edge cases are too painful.
The only dupe jar detection that occurs now is some extremely simple string
match. So if someone does something like $DIR/lib/blah.jar and
$DIR/lib/../lib/blah.jar, it won't get deduped. (It does, however, verify that
$DIR/lib and $DIR/lib/../lib exists!) Even with just this simple stuff, it
eliminates multiple instances of the conf dir at a minimum.
> 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: 2.1.1-beta
> Reporter: Allen Wittenauer
> Assignee: Allen Wittenauer
> Attachments: hadoop-9902-1.patch, more-info.txt
>
>
> Umbrella JIRA for shell script rewrite. See more-info.txt for more details.
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