[jira] [Created] (AMBARI-14882) AMS aggregates Counter values as average over the timeseries (and other issues)

["Siddharth Wagle (JIRA)" <ji...@apache.org>]

Siddharth Wagle created AMBARI-14882:
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             Summary: AMS aggregates Counter values as average over the timeseries (and other issues)
                 Key: AMBARI-14882
                 URL: https://issues.apache.org/jira/browse/AMBARI-14882
             Project: Ambari
          Issue Type: Task
          Components: ambari-metrics
    Affects Versions: 2.0.0
            Reporter: Siddharth Wagle
            Assignee: Siddharth Wagle
            Priority: Critical
             Fix For: 2.2.2


Current behavior:
We store the difference between two points if the metric is a counter without dividing by the time difference (Assumes fixed sampling frequency, 10 seconds for Hadoop daemons). This is similar to the Ganglia sink implementation.

Expected behavior:
- Store raw data with type = COUNTER and provide aggregate function called ._rate to calculate rate on demand.
- We need to make sure type attribute on the METRIC_RECORD data capture COUNTER / GAUGE. The HadoopMetricsSink needs to change to send this value.



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