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From "Dmytro Sen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-15801) HDFS script alerts moved to UNKNOWN status with "Unable to calculate the standard deviation for 1 datapoints"
Date Mon, 11 Apr 2016 11:52:25 GMT
Dmytro Sen created AMBARI-15801:
-----------------------------------

             Summary: HDFS script alerts moved to UNKNOWN status with "Unable to calculate
the standard deviation for 1 datapoints"
                 Key: AMBARI-15801
                 URL: https://issues.apache.org/jira/browse/AMBARI-15801
             Project: Ambari
          Issue Type: Bug
          Components: alerts, ambari-metrics
    Affects Versions: 2.2.2
            Reporter: Dmytro Sen
            Assignee: Dmytro Sen
            Priority: Critical
             Fix For: 2.2.2


HDFS Script alerts turned to UNKNOWN status when minimumValue threshold are set to very low
values, with an error response "Unable to calculate the standard deviation for 1 datapoints"/"Unable
to calculate the standard deviation for 0 datapoints"

Note : This behavior is not observed when the minimumValue is set to a higher value (e.g 30.0).





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