[jira] [Updated] (HDFS-9888) Allow reseting KerberosName in unit tests

["Zhe Zhang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-9888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhe Zhang updated HDFS-9888:
----------------------------
    Summary: Allow reseting KerberosName in unit tests  (was: TestBalancer#testBalancerWithKeytabs should reset KerberosName in test case setup)

> Allow reseting KerberosName in unit tests
> -----------------------------------------
>
>                 Key: HDFS-9888
>                 URL: https://issues.apache.org/jira/browse/HDFS-9888
>             Project: Hadoop HDFS
>          Issue Type: Test
>            Reporter: Xiao Chen
>            Assignee: Xiao Chen
>            Priority: Minor
>         Attachments: HDFS-9888.01.patch
>
>
> In some local environments, {{TestBalancer#testBalancerWithKeytabs}} may fail. Specifically, running itself passes, but running {{TestBalancer}} suite always fail. This is due to:
> # Kerberos setup is done at the test case setup
> # static variable {{KerberosName#defaultRealm}} is set when class initialization - before {{testBalancerWithKeytabs}} setup
> # local default realm is different than test case default realm
> This is mostly an environment specific problem, but let's not make such assumption in the test.



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