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From "Lin Wen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HAWQ-940) Kerberos Ticket Expired for LibYARN Operations
Date Tue, 19 Jul 2016 10:02:20 GMT
Lin Wen created HAWQ-940:
----------------------------

             Summary: Kerberos Ticket Expired for LibYARN Operations
                 Key: HAWQ-940
                 URL: https://issues.apache.org/jira/browse/HAWQ-940
             Project: Apache HAWQ
          Issue Type: Bug
          Components: libyarn
            Reporter: Lin Wen
            Assignee: Lei Chang


HAWQ's libhdfs3 and libyarn use a same kerberos keyfile. 
Whenever a hdfs operation is triggered, a function named login() is called, in login() function,
this ticket is initialized by "kinit". 
But for libyarn, login() function is only called during the resource broker process starts.
So if HAWQ starts up and there is no query for a long period(24 hours in kerberos's configure
file, krb.conf), this ticket will expire, and HAWQ fails to register itself in Hadoop YARN.



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