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https://issues.apache.org/jira/browse/HADOOP-9317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daryn Sharp updated HADOOP-9317:
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Status: Patch Available (was: Open)
> User cannot specify a kerberos keytab for commands
> --------------------------------------------------
>
> Key: HADOOP-9317
> URL: https://issues.apache.org/jira/browse/HADOOP-9317
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 2.0.0-alpha, 0.23.0, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Attachments: HADOOP-9317.branch-23.patch, HADOOP-9317.patch
>
>
> {{UserGroupInformation}} only allows kerberos users to be logged in via the
> ticket cache when running hadoop commands. {{UGI}} allows a keytab to be
> used, but it's only exposed programatically. This forces keytab-based users
> running hadoop commands to periodically issue a kinit from the keytab. A
> race condition exists during the kinit when the ticket cache is deleted and
> re-created. Hadoop commands will fail when the ticket cache does not
> momentarily exist.
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