Ray Chiang created HADOOP-11104:
-----------------------------------

             Summary: org.apache.hadoop.metrics2.lib.MetricsRegistry needs 
numerical parameter checking
                 Key: HADOOP-11104
                 URL: https://issues.apache.org/jira/browse/HADOOP-11104
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Ray Chiang
            Assignee: Ray Chiang
            Priority: Minor


Passing a negative value to the interval field of MetricsRegistry#newQuantiles 
should throw a MetricsException with a clear error message.  The current stack 
trace looks something like:

java.lang.IllegalArgumentException: null
        at 
java.util.concurrent.ScheduledThreadPoolExecutor.scheduleAtFixedRate(ScheduledThreadPoolExecutor.java:420)
        at 
org.apache.hadoop.metrics2.lib.MutableQuantiles.<init>(MutableQuantiles.java:107)
        at 
org.apache.hadoop.metrics2.lib.MetricsRegistry.newQuantiles(MetricsRegistry.java:200)

Along similar lines, should the other methods like MetricsRegistry#newCounter() 
also have parameter checking for negative int/long values?



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