[AMBARI-15801] HDFS script alerts moved to UNKNOWN status with "Unable to calculate the standard deviation for 1 datapoints"

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.2.2
• Fix Version/s: 2.2.2
• Component/s: alerts, ambari-metrics
• Assignee: Dmytro Sen
• Reporter: Dmytro Sen
• Created: 11/Apr/16 11:52
• Updated: 11/Apr/16 19:59
• Resolved: 11/Apr/16 17:36

Description

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).

Issue Links

• links to: Review Board