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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7532) Hadoop web UI 2.0
Date Fri, 19 Aug 2011 18:04:28 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13087842#comment-13087842
] 

Robert Joseph Evans commented on HADOOP-7532:
---------------------------------------------

Web services is one thing, and the GUI is something else entirely, especially for the Application
Master.  Web services are good and they often make writing a dynamic web GUI much simpler,
but having them does not change my original question.  Should be supporting a GUI *ON* the
Application Master at all?  

Having a GUI run on a separate box from the AM (even on a Gateway if the user wants to have
new and innovative visualizations) I think keeps our priorities straight and offers a lot
of flexibility.  I would much rather see a full featured API over a full featured GUI.  I
don't want to have to write something that is brittle to pull data out of html when I could
call a simple API/web service to get it.  I also would prefer not to have to go to two sources
to get the information we need, but that is a comment that should probably go on MAPREDUCE-2863.
 I am not anti GUI.  I just think that jumping through a bunch of hoops, especially security
hoops, to get the GUI to work seems like a lot of effort that I would rather see put into
making an API (or web service) that has all of the functionality needed to support Hadoop's
users and provide a simple GUI that can be extended later to be more full featured.

> Hadoop web UI 2.0
> -----------------
>
>                 Key: HADOOP-7532
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7532
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 0.23.0
>            Reporter: Luke Lu
>            Assignee: Luke Lu
>             Fix For: 0.23.0
>
>
> People have expressed interests of bringing Hadoop web UI up to date with the lightweight
embedded web mvc framework used in MAPREDUCE-279 (cf. MAPREDUCE-2399). This is the umbrella
jira for UI improvement for 0.23+. Individual items like web framework refactor/move and the
unique challenge for MR2 webapp security will be filed separately.
> Thoughts/ideas on various improvement of Hadoop web UI are welcome here. Some of the
ideas will naturally become sub-issues.

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