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From "Billie Rinaldi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-1268) Improve DAG UI
Date Sun, 27 Jan 2013 16:25:12 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-1268?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Billie Rinaldi updated AMBARI-1268:
-----------------------------------

    Attachment: AMBARI-1268.patch

Here's a first draft of the DAG / swimlane approach.  I've tested with a variety of DAGs,
but if anyone has particularly complex ones, I'd be happy to get more samples.  The node placement
algorithm takes a specified node height and an svg height, divides the svg into "lanes," and
tries to place nodes into lanes so they are not overlapping.  There is more work to be done
in developing a strategy for what to do if this isn't possible.  One idea would be to dynamically
decrease the node height and/or increase the svg height to fit in more lanes.
                
> Improve DAG UI
> --------------
>
>                 Key: AMBARI-1268
>                 URL: https://issues.apache.org/jira/browse/AMBARI-1268
>             Project: Ambari
>          Issue Type: Improvement
>          Components: client
>            Reporter: Billie Rinaldi
>            Assignee: Billie Rinaldi
>         Attachments: AMBARI-1268.patch
>
>
> The "floating" of the DAG nodes makes it hard to read and doesn't communicate any information.
 The node positions should be fixed.  I propose placing the nodes on a timeline so their positions
indicate start times and durations.

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