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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-14636) TestKDiag failing intermittently on Jenkins/Yetus at login from keytab
Date Sat, 08 Jul 2017 11:29:00 GMT
Steve Loughran created HADOOP-14636:
---------------------------------------

             Summary: TestKDiag failing intermittently on Jenkins/Yetus at login from keytab
                 Key: HADOOP-14636
                 URL: https://issues.apache.org/jira/browse/HADOOP-14636
             Project: Hadoop Common
          Issue Type: Bug
          Components: security, test
    Affects Versions: 3.0.0-beta1
            Reporter: Steve Loughran
            Priority: Minor


The test {{TestKDiag}} is failing intermittently on Yetus builds, 

{code}
org.apache.hadoop.security.KerberosAuthException: Login failure for user: foo@EXAMPLE.COM
from keytab /testptch/hadoop/hadoop-common-project/hadoop-common/target/keytab javax.security.auth.login.LoginException:
Unable to obtain password from user
{code}

The tests that fail are all trying to log in using a keytab just created, the JVM isn't having
any of it.

Possible causes? I can think of a few to start with

# keytab generation
# keytab path parameter wrong
# JVM isn't doing the login
# some race condition
# Host OS
# Other environment issues (clock, network...)

There's no recent changes in the kdiag or UGI code.

The failure is intermittent, not surfacing for me (others?) locally, which which could point
at: JVM, host OS, race condition, other env  issues.



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