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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2675) MR-279: JobHistory Server main page needs to be reformatted
Date Mon, 12 Sep 2011 13:51:09 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102659#comment-13102659

Robert Joseph Evans commented on MAPREDUCE-2675:

I agree completely HsJobBlock will change quite a bit in MAPREDUCE-2676.  It probably would
have been better to wait for that one to do the fork.

There are also some issues with the framework that make it difficult to not fork at least
some of the code.  For example the Counters page is identical in both the application master
and in the Job History Server, except in the Job History version it inherits from a different
parent class to override the NavBlock and to remove the auto refresh that was initially there
on several of the ApplicationMaster pages.   It also changes which section of the nav block
that is expanded by default.  It would probably have been less code to sub class the original
counters page and just override those parts that are different, but I thought being consistent
on the pages in the History Server was better.

Ideally in the future we start creating some fairly standard widgets that can be reused in
many different locations, then if there is a fork the amount of code being forked is much

> MR-279: JobHistory Server main page needs to be reformatted
> -----------------------------------------------------------
>                 Key: MAPREDUCE-2675
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2675
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>             Fix For: 0.23.0
>         Attachments: MR-2675-V1.patch, MR-2675-V2.patch, MR-2675-V3.patch, MR-2675-V4.patch,
MR-2675-V5.patch, MR-2675-preview.patch
> The main page of the Job History Server is based off of the Application Master code.
 It needs to be reformatted to be more useful and better match what was there before.
> - The Active Jobs title needs to be replaced with something more appropriate (i.e. Retired
> - The table of jobs should have the following columns in it
>   - Submit time, Job Id, Job Name, User and just because I think it would be useful state,
maps completed, maps failed, reduces completed, reduces failed
> - The table needs more advanced filtering, something like http://datatables.net/release-datatables/examples/api/multi_filter.html
This is to match the previous search functionality.

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