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From "Ravi Prakash (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3500) Optimize ResourceManager Web loading speed
Date Mon, 20 Apr 2015 17:50:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-3500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14503294#comment-14503294
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Ravi Prakash commented on YARN-3500:
------------------------------------

We have gone back and forth on paging server side and client side. The earlier UI used to
be paged server side. For some reason, paging was moved to client side. One of them was that
even for 10k jobs, the amount of JSON data was pretty small. [~shihaoliang] Have you profiled
where those 55 seconds were spent? How much of that was network transfer?

Personally I like server side paging, specially if we default to showing a LOT of jobs. I'd
be in favor of [Server-side Datatables|https://www.datatables.net/examples/data_sources/server_side.html]
(but it may require a lot of effort). 

> Optimize ResourceManager Web loading speed
> ------------------------------------------
>
>                 Key: YARN-3500
>                 URL: https://issues.apache.org/jira/browse/YARN-3500
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>            Reporter: Peter Shi
>
> after running 10k jobs, resoucemanager webui load speed become slow. As server side send
10k jobs information in one response, parsing and rendering page will cost a long time. Current
paging logic is done in browser side. 
> This issue makes server side to do the paging logic, so that the loading will be fast.
> Loading 10k jobs costs 55 sec. loading 2k costs 7 sec



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