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https://issues.apache.org/jira/browse/YARN-237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13590999#comment-13590999
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Robert Joseph Evans commented on YARN-237:
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The code that Jian wrote is working on the RM as well as the AM, I tested it.  
The patch changes code that is common to both of them.  The issues I mentioned 
are not theoretical.  The reason it works on the AM is because it is not using 
a cookie, instead it is using an HTML5 concept for local storage.

If we want to restrict these to just be for the RM that does seem to fix the 
issue.
                
> Refreshing the RM page forgets how many rows I had in my Datatables
> -------------------------------------------------------------------
>
>                 Key: YARN-237
>                 URL: https://issues.apache.org/jira/browse/YARN-237
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 2.0.2-alpha, 0.23.4, 3.0.0
>            Reporter: Ravi Prakash
>            Assignee: jian he
>              Labels: usability
>         Attachments: YARN-237.patch
>
>
> If I choose a 100 rows, and then refresh the page, DataTables goes back to 
> showing me 20 rows.
> This user preference should be stored in a cookie.

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