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https://issues.apache.org/jira/browse/YARN-5373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15375683#comment-15375683
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Daniel Templeton commented on YARN-5373:
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It looks like the issue only appears when running with a secure cluster.
> NPE introduced by YARN-4958 (The file localization process should allow...)
> ---------------------------------------------------------------------------
>
> Key: YARN-5373
> URL: https://issues.apache.org/jira/browse/YARN-5373
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 2.9.0
> Reporter: Haibo Chen
> Assignee: Haibo Chen
>
> YARN-4958 added support for wildcards in file localization. It introduces a
> NPE
> at
> {code:java}
> for (File wildLink : directory.listFiles()) {
> sb.symlink(new Path(wildLink.toString()), new Path(wildLink.getName()));
> }
> {code}
> When directory.listFiles returns null, NPE will cause the container fail to
> launch.
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