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Posted to common-issues@hadoop.apache.org by "Mit Desai (JIRA)" <ji...@apache.org> on 2014/04/10 22:46:29 UTC

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

    [ https://issues.apache.org/jira/browse/HADOOP-9317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13965823#comment-13965823 ] 

Mit Desai commented on HADOOP-9317:
-----------------------------------

Talked to Daryn offline. Removing the target version for 0.23

> 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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