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https://issues.apache.org/jira/browse/HADOOP-15110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16315677#comment-16315677
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Harshakiran Reddy commented on HADOOP-15110:
--------------------------------------------
Thanks [~steve_l] for watching this issue.
My Intention of this issue not for Exception, In that Exception objects are
getting logged, those are not user understandable, Bellow are objects and their
values.
*renewalFailures* : {{org.apache.hadoop.metrics2.lib.MutableGaugeInt@1bbb43eb}}
*renewalFailuresTotal* :
{{org.apache.hadoop.metrics2.lib.MutableGaugeLong@424a0549}}
> Objects are getting logged when we got exception from
> AutoRenewalThreadForUserCreds
> -----------------------------------------------------------------------------------
>
> Key: HADOOP-15110
> URL: https://issues.apache.org/jira/browse/HADOOP-15110
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Affects Versions: 2.8.0, 3.0.0-alpha2
> Reporter: Harshakiran Reddy
> Priority: Minor
>
> *scenario*:
> -----------------
> While Running the renewal command for principal it's printing the direct
> objects for *renewalFailures *and *renewalFailuresTotal*
> {noformat}
> bin> ./hdfs dfs -ls /
> 2017-12-12 12:31:50,910 WARN util.NativeCodeLoader: Unable to load
> native-hadoop library for your platform... using builtin-java classes where
> applicable
> 2017-12-12 12:31:52,312 WARN security.UserGroupInformation: Exception
> encountered while running the renewal command for principal_name. (TGT end
> time:1513070122000, renewalFailures:
> org.apache.hadoop.metrics2.lib.MutableGaugeInt@1bbb43eb,renewalFailuresTotal:
> org.apache.hadoop.metrics2.lib.MutableGaugeLong@424a0549)
> ExitCodeException exitCode=1: kinit: KDC can't fulfill requested option while
> renewing credentials
> at org.apache.hadoop.util.Shell.runCommand(Shell.java:994)
> at org.apache.hadoop.util.Shell.run(Shell.java:887)
> at
> org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:1212)
> at org.apache.hadoop.util.Shell.execCommand(Shell.java:1306)
> at org.apache.hadoop.util.Shell.execCommand(Shell.java:1288)
> at
> org.apache.hadoop.security.UserGroupInformation$1.run(UserGroupInformation.java:1067)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> *Expected Result*:
> it's should be user understandable value.
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