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https://issues.apache.org/jira/browse/PIG-948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12757310#action_12757310
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Dmitriy V. Ryaboy commented on PIG-948:
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I don't see a problem with url construction in Pig code.  If Hadoop exposed 
this, then sure, it would be better to use such a feature.

Since Hadoop does not expose it (afaik), it's more useful for the end-user to 
have this url than to have a jobid.  Maintenance on this piece of code is 
minimal -- after all, it's just a simple string concatenation we are talking 
about.  If Hadoop changes how this url is constructed, it will take about 3 
minutes to fix, 2.5 of which will be spent opening a Jira ticket.  

In the meantime, users will have a more usable product than they would without 
this one line of code.

> [Usability] Relating pig script with MR jobs
> --------------------------------------------
>
>                 Key: PIG-948
>                 URL: https://issues.apache.org/jira/browse/PIG-948
>             Project: Pig
>          Issue Type: Improvement
>          Components: impl
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>            Priority: Minor
>         Attachments: pig-948.patch
>
>
> Currently its hard to find a way to relate pig script with specific MR job. 
> In a loaded cluster with multiple simultaneous job submissions, its not easy 
> to figure out which specific MR jobs were launched for a given pig script. If 
> Pig can provide this info, it will be useful to debug and monitor the jobs 
> resulting from a pig script.
> At the very least, Pig should be able to provide user the following 
> information
> 1) Job id of the launched job.
> 2) Complete web url of jobtracker running this job. 

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