[jira] [Created] (AMBARI-18593) Provide ability to use downsampling function on certain metrics like client side topN

[Aravindan Vijayan (JIRA)]

Aravindan Vijayan created AMBARI-18593:
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             Summary: Provide ability to use downsampling function on certain 
metrics like client side topN
                 Key: AMBARI-18593
                 URL: https://issues.apache.org/jira/browse/AMBARI-18593
             Project: Ambari
          Issue Type: Task
          Components: ambari-metrics
    Affects Versions: 2.5.0
            Reporter: Aravindan Vijayan
            Assignee: Aravindan Vijayan
            Priority: Critical
             Fix For: 2.5.0


HDFS exposes top user activity broken down by operations in jmx (nntop).
 These metrics should be captured in AMS and exposed in Grafana's HDFS 
dashboards.

Downsampling should likely be a function like MIN, MAX, AVG, SUM of underlying 
timeseries specified from the client.



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