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From "Robert Parker (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-9317) User cannot specify a kerberos keytab for commands
Date Tue, 21 May 2013 21:06:20 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-9317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Parker updated HADOOP-9317:
----------------------------------

    Attachment: HADOOP-9317.patch

Refreshed the patch to latest trunk/branch-2
                
> 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: 0.23.0, 2.0.0-alpha, 3.0.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Critical
>         Attachments: HADOOP-9317.branch-23.patch, HADOOP-9317.branch-23.patch, HADOOP-9317.patch,
HADOOP-9317.patch, HADOOP-9317.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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