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https://issues.apache.org/jira/browse/HADOOP-12728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer updated HADOOP-12728:
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Assignee: (was: Allen Wittenauer)
> "hadoop jar my.jar" should probably prioritize my.jar in the classpath by
> default
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-12728
> URL: https://issues.apache.org/jira/browse/HADOOP-12728
> Project: Hadoop Common
> Issue Type: Improvement
> Components: scripts
> Affects Versions: 2.7.1
> Reporter: Ovidiu Gheorghioiu
> Priority: Minor
>
> Found this surprising behavior when testing a dev version of a jar that was
> already in the hadoop classpath: "hadoop jar ./my.jar" used the system
> my.jar, which was an old version that did not contain my bug fix. Since
> "hadoop jar" is the rough equivalent of running an executable, it should use
> the version passed on the command line.
> Even worse than my case (which took a while to figure out with log messages)
> is when I'd be testing that the new version works the same as the old in some
> use case. Then I'd think it did, even though the new version was completely
> broken.
> Allen mentioned verbally that there are some tricky aspects to this, but to
> open this issue for tracking / brainstorming.
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