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https://issues.apache.org/jira/browse/HADOOP-10775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14196211#comment-14196211
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Steve Loughran commented on HADOOP-10775:
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Also, if {{winutils.exe}} is on the path, no check is actually made for this.
the code in hadoop assumes
# that {{HADOOP_HOME}} is defined and exists
# that {{$HADOOP_HOME/bin/winutils.exe}} exists
> Shell operations to fail with meaningful errors on windows if winutils.exe
> not found
> ------------------------------------------------------------------------------------
>
> Key: HADOOP-10775
> URL: https://issues.apache.org/jira/browse/HADOOP-10775
> Project: Hadoop Common
> Issue Type: Improvement
> Components: util
> Affects Versions: trunk-win
> Environment: Apache jenkins windows1 server
> Reporter: Steve Loughran
> Priority: Minor
>
> If {{winutils.exe}} can't be found {{HADOOP_HOME}} wrong/unset or other
> causes, then an error is logged -but when any of the {{Shell}} operations are
> used, an NPE is raised rather than something meaningful.
> The error message at setup time should be preserved and then raised before
> any attempt to invoke a winutils-driven process made
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