[jira] [Updated] (AMBARI-17845) Storm cluster metrics do not show up because of AMS aggregation issue.

["Aravindan Vijayan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-17845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aravindan Vijayan updated AMBARI-17845:
---------------------------------------
    Attachment: AMBARI-17845.patch

> Storm cluster metrics do not show up because of AMS aggregation issue.
> ----------------------------------------------------------------------
>
>                 Key: AMBARI-17845
>                 URL: https://issues.apache.org/jira/browse/AMBARI-17845
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: 2.2.2
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Critical
>             Fix For: 2.4.0
>
>         Attachments: AMBARI-17845.patch
>
>
> PROBLEM
> Storm cluster metrics (aggregated across hosts) don't show up in Ambari and Grafana
> BUG
> Storm metrics collect and send data in 1 minute intervals. Since their data is present in the right end of the spectrum for the 2 minute aggregator (start_time ~ server_time), a bug in the second aggregator is causing these values to slip between 2 aggregator cycles.
> FIX
> Within the 2 minute interval, look for the data in the time shifted interval ( ams-site:timeline.metrics.service.cluster.aggregator.timeshift.adjustment). In case no data is present, look for the data outside the right boundary of the interval. Use that to interpolate the data in the 30second slices.



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