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https://issues.apache.org/jira/browse/OOZIE-1231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633507#comment-13633507
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Mohammad Kamrul Islam commented on OOZIE-1231:
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Overall I think this is a very confusing and long discussed issue. No single 
approach will solve this.

UI: I don't like the option of including another tab for only this. Rather a 
new item after "Console URL" in action Info will be better.

Backend : 
More confusions are here.
Let's solve the original inconsistency issue.
 
Robert's comments are better. But it will also break backward-compatibility.

One option to workaround this is: 
Whoever will call older version of REST API (such as v1), Oozie will return the 
way it is now. For new REST API version (v2+), we will return the newer fields 
as <LauncherId, ChildIDs>.



 
 
                
> Provide access to launcher job URL from web console when using Map Reduce 
> action
> --------------------------------------------------------------------------------
>
>                 Key: OOZIE-1231
>                 URL: https://issues.apache.org/jira/browse/OOZIE-1231
>             Project: Oozie
>          Issue Type: Bug
>    Affects Versions: trunk
>            Reporter: Ryota Egashira
>            Assignee: Ryota Egashira
>              Labels: oozie
>         Attachments: Screen Shot Launcher_Job_URL_tab.png
>
>
> there are applications where custom inputformat used in MR action, and log 
> message from the inputformat is written on launcher task log. for debugging 
> purpose, users need to check the launcher task log. but currently in MR 
> action, oozie automatically swaps external ID, and do not expose the launcher 
> ID in web-console. (now only way is to to grep oozie.log). this jira is to 
> show launcher job URL on web console when using Map Reduce action 

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