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From "Andrii Tkach (JIRA)" <j...@apache.org>
Subject [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)
Date Tue, 12 May 2015 14:24:01 GMT

    [ 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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