[jira] [Commented] (AMBARI-11064) Widgets: Graph change API calls to use null padding rather than zero padding (graphs are misleading for recent data points as they are shown as zero when there's no data)

["Andrii Tkach (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-11064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14539877#comment-14539877 ] 

Andrii Tkach commented on AMBARI-11064:
---------------------------------------

  6022 tests complete (13 seconds)
  79 tests pending

> Widgets: Graph change API calls to use null padding rather than zero padding (graphs are misleading for recent data points as they are shown as zero when there's no data)
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-11064
>                 URL: https://issues.apache.org/jira/browse/AMBARI-11064
>             Project: Ambari
>          Issue Type: Task
>          Components: ambari-web
>    Affects Versions: 2.1.0
>            Reporter: Andrii Tkach
>            Assignee: Andrii Tkach
>            Priority: Critical
>             Fix For: 2.1.0
>
>         Attachments: AMBARI-11064.patch
>
>
> Ambari Metrics API have recently changed to automatically pad missing data with zeros.
> However, this creates strange user experience where more recent data, if the metrics collection is somehow lagging, to drop off to zero. This is misleading.
> We should convert the API calls to use null padding and make sure to not show any data in case of null (rather than zero).



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