Craig Welch created YARN-3626:
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Summary: On Windows localized resources are not moved to the front
of the classpath when they should be
Key: YARN-3626
URL: https://issues.apache.org/jira/browse/YARN-3626
Project: Hadoop YARN
Issue Type: Bug
Components: yarn
Environment: Windows
Reporter: Craig Welch
Assignee: Craig Welch
In response to the mapreduce.job.user.classpath.first setting the classpath is
ordered differently so that localized resources will appear before system
classpath resources when tasks execute. On Windows this does not work because
the localized resources are not linked into their final location when the
classpath jar is created. To compensate for that localized jar resources are
added directly to the classpath generated for the jar rather than being
discovered from the localized directories. Unfortunately, they are always
appended to the classpath, and so are never preferred over system resources.
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