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Posted to issues@hawq.apache.org by "Lin Wen (JIRA)" <ji...@apache.org> on 2016/07/19 10:02:20 UTC
[jira] [Created] (HAWQ-940) Kerberos Ticket Expired for LibYARN
Operations
Lin Wen created HAWQ-940:
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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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