[HADOOP-15110] Gauges are getting logged in exceptions from AutoRenewalThreadForUserCreds

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.8.0, 3.0.0-alpha2
• Fix Version/s: 3.1.2
• Component/s: metrics, security
• Assignee: LiXin Ge
• Reporter: Harshakiran Reddy
• Created: 12/Dec/17 05:09
• Updated: 12/Nov/18 13:22
• Resolved: 12/Nov/18 13:00

Description

scenario:
-----------------

While Running the renewal command for principal it's printing the direct objects for renewalFailures *and *renewalFailuresTotal

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)

Expected Result:
it's should be user understandable value.