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Posted to common-issues@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2013/08/08 18:45:48 UTC

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

Daryn Sharp created HADOOP-9852:
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             Summary: 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
            Reporter: Daryn Sharp
            Assignee: Daryn Sharp


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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