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https://issues.apache.org/jira/browse/YARN-2828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14202033#comment-14202033
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Thomas Graves commented on YARN-2828:
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auto refresh was removed because some pages load a lot of data and you actually
may not want it to update. It can make debugging harder if you are looking at
a lot of data and the screen keeps refreshing on you.
I think the only way to bring it back is to make it optional.
> 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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