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From "Ray Chiang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-11104) org.apache.hadoop.metrics2.lib.MetricsRegistry needs numerical parameter checking
Date Thu, 18 Sep 2014 05:40:34 GMT
Ray Chiang created HADOOP-11104:

             Summary: org.apache.hadoop.metrics2.lib.MetricsRegistry needs numerical parameter
                 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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