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https://issues.apache.org/jira/browse/HDFS-3444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13279192#comment-13279192
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Eli Collins commented on HDFS-3444:
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+1 looks great
> hdfs groups command doesn't work with security enabled
> ------------------------------------------------------
>
> Key: HDFS-3444
> URL: https://issues.apache.org/jira/browse/HDFS-3444
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 2.0.0
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Attachments: HDFS-3444.patch
>
>
> When one tries to run `hdfs groups' with security enabled, you'll get an
> error like the following:
> {noformat}
> java.io.IOException: Failed to specify server's Kerberos principal name;
> {noformat}
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