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Posted to dev@chukwa.apache.org by "Eric Yang (JIRA)" <ji...@apache.org> on 2015/06/24 23:48:08 UTC

[jira] [Updated] (CHUKWA-767) Implement low pass filter for Charting REST API

     [ https://issues.apache.org/jira/browse/CHUKWA-767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Yang updated CHUKWA-767:
-----------------------------
    Attachment: CHUKWA-767.patch

Implemented basic low pass filter that would work for down sampling daily data.

> Implement low pass filter for Charting REST API
> -----------------------------------------------
>
>                 Key: CHUKWA-767
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-767
>             Project: Chukwa
>          Issue Type: Improvement
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>         Attachments: CHUKWA-767.patch
>
>
> For visualization, raw data maybe overwhelming the rendering device.  Some kind of low pass filter needs to be implemented to visual monitoring data.
> One example of low pass filter is described in:
> http://phrogz.net/js/framerate-independent-low-pass-filter.html
> Similar algorithm can be implemented in Chukwa REST API for serving daily monitoring data.



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