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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-9317) User cannot specify a kerberos keytab for commands
Date Tue, 19 Feb 2013 15:51:14 GMT
Daryn Sharp created HADOOP-9317:
-----------------------------------

             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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