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Posted to common-dev@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2013/02/19 16:51:14 UTC

[jira] [Created] (HADOOP-9317) User cannot specify a kerberos keytab for commands

Daryn Sharp created HADOOP-9317:
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             Summary: 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


{{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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