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https://issues.apache.org/jira/browse/YARN-2828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14208249#comment-14208249
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Lars Francke commented on YARN-2828:
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Yes, this was extremely useful and I miss this feature almost every day. 
Optional is totally fine.

> Enable auto refresh of web pages (using http parameter)
> -------------------------------------------------------
>
>                 Key: YARN-2828
>                 URL: https://issues.apache.org/jira/browse/YARN-2828
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Tim Robertson
>            Priority: Minor
>
> The MR1 Job Tracker had a useful HTTP parameter of e.g. "&refresh=3" that 
> could be appended to URLs which enabled a page reload.  This was very useful 
> when developing mapreduce jobs, especially to watch counters changing.  This 
> is lost in the the Yarn interface.
> Could be implemented as a page element (e.g. drop down or so), but I'd 
> recommend that the page not be more cluttered, and simply bring back the 
> optional "refresh" HTTP param.  It worked really nicely.



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