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From "Aravindan Vijayan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-13411) Problem in precision handling of metrics returned by AMS
Date Fri, 23 Oct 2015 21:22:28 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-13411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aravindan Vijayan updated AMBARI-13411:
---------------------------------------
    Description: 
Bug
The metrics data returned by Ambari that is displayed on the charts seems to have different
granularity for different periods in a single time series on a chart.

Problem
The AMS cache layer running on the Ambari server requests the metrics data only for the delta
period (period for which the data is not present in the cache) to the AMS. The bug was that
the precision of the data requested (or computed) was not taken into account during this delta
request.

Objective of this patch
Incorporate the difference between precision of the data in the cache and the requested precision
of the data while requesting from AMS.

  was:
Bug
The metrics data returned by Ambari that is displayed on the charts seems to have different
granularity for different periods in a single time series on a chart.

Problem
The AMS cache layer running on the Ambari server requests the metrics data only for the delta
period (period for which the data is not present in the cache) to the AMS. The bug was that
the precision of the data requested (or computed) was not taken into account during this delta
request.

Objective of this patch
Incorporate the different between precision of the data in the cache and the requested data
precision while requesting from AMS.


> Problem in precision handling of metrics returned by AMS
> --------------------------------------------------------
>
>                 Key: AMBARI-13411
>                 URL: https://issues.apache.org/jira/browse/AMBARI-13411
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: 2.1.2
>            Reporter: Siddharth Wagle
>            Assignee: Aravindan Vijayan
>            Priority: Critical
>             Fix For: 2.1.3
>
>
> Bug
> The metrics data returned by Ambari that is displayed on the charts seems to have different
granularity for different periods in a single time series on a chart.
> Problem
> The AMS cache layer running on the Ambari server requests the metrics data only for the
delta period (period for which the data is not present in the cache) to the AMS. The bug was
that the precision of the data requested (or computed) was not taken into account during this
delta request.
> Objective of this patch
> Incorporate the difference between precision of the data in the cache and the requested
precision of the data while requesting from AMS.



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