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Posted to common-dev@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2017/08/18 17:49:00 UTC

[jira] [Resolved] (HADOOP-9852) UGI login user keytab and principal should not be static

     [ https://issues.apache.org/jira/browse/HADOOP-9852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daryn Sharp resolved HADOOP-9852.
---------------------------------
    Resolution: Duplicate

Incorporated into parent jira.

> UGI login user keytab and principal should not be static
> --------------------------------------------------------
>
>                 Key: HADOOP-9852
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9852
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: security
>    Affects Versions: 2.0.0-alpha, 3.0.0-alpha1
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: HADOOP-9852.patch
>
>
> The static keytab and principal for the login user is problematic.  The login conf explicitly references these statics.  As a result, loginUserFromKeytabAndReturnUGI is unnecessarily synch'ed on the class to swap out the login user's keytab and principal, login, then restore the keytab/principal.  This method's synch blocks further de-synching of other methods.



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