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https://issues.apache.org/jira/browse/AMBARI-15801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15235393#comment-15235393
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Hadoop QA commented on AMBARI-15801:
------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12798017/AMBARI-15801-trunk_2.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
ambari-server.
Test results:
https://builds.apache.org/job/Ambari-trunk-test-patch/6349//testReport/
Console output:
https://builds.apache.org/job/Ambari-trunk-test-patch/6349//console
This message is automatically generated.
> 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
>
> Attachments: AMBARI-15801-trunk_2.patch
>
>
> 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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