Xuefu Zhang reassigned HIVE-17300:

    Assignee: Karen Coppage

> WebUI query plan graphs
> -----------------------
>                 Key: HIVE-17300
>                 URL: https://issues.apache.org/jira/browse/HIVE-17300
>             Project: Hive
>          Issue Type: Improvement
>          Components: Web UI
>            Reporter: Karen Coppage
>            Assignee: Karen Coppage
>         Attachments: complete_success.png, full_mapred_stats.png, 
> graph_with_mapred_stats.png, last_stage_error.png, last_stage_running.png, 
> non_mapred_task_selected.png
> Hi all,
> I’m working on a feature of the Hive WebUI Query Plan tab that would provide 
> the option to display the query plan as a nice graph (scroll down for 
> screenshots). If you click on one of the graph’s stages, the plan for that 
> stage appears as text below. 
> Stages are color-coded if they have a status (Success, Error, Running), and 
> the rest are grayed out. Coloring is based on status already available in the 
> WebUI, under the Stages tab.
> There is an additional option to display stats for MapReduce tasks. This 
> includes the job’s ID, tracking URL (where the logs are found), and mapper 
> and reducer numbers/progress, among other info. 
> The library I’m using for the graph is called vis.js (http://visjs.org/). It 
> has an Apache license, and the only necessary file to be included from this 
> library is about 700 KB.
> I tried to keep server-side changes minimal, and graph generation is taken 
> care of by the client. Plans with more than a given number of stages 
> (default: 25) won't be displayed in order to preserve resources.
> I’d love to hear any and all input from the community about this feature: do 
> you think it’s useful, and is there anything important I’m missing?
> Thanks,
> Karen Coppage

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