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From "David McLaughlin (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (AURORA-458) Web interface has become slow, especially the job page
Date Thu, 22 May 2014 18:59:01 GMT

    [ https://issues.apache.org/jira/browse/AURORA-458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14006322#comment-14006322
] 

David McLaughlin edited comment on AURORA-458 at 5/22/14 6:57 PM:
------------------------------------------------------------------

Attaching screenshots of the network debug tab for a large job. The thrift API response is
around 1.25s, which we could certainly improve on but doesn't explain the 4~5s delay in rendering
the page.

I noticed that the thrift requests are happening serially, which would suggest the XMLHttpRequest
operations are synchronous. This will block the entire browser and is most likely causing
the brunt of the performance issues. 


was (Author: davmclau):
Attaching screenshots of the network debug tab for a large job. The thrift API response is
around 1.25s, which we could certainly improve on but doesn't explain the 4~5s delay in rendering
the page.

I noticed too that the thrift requests are happing serially, which would suggest the XMLHttpRequest
operations are synchronous. This will block the entire browser and is most likely causing
the brunt of the performance issues. 

> Web interface has become slow, especially the job page
> ------------------------------------------------------
>
>                 Key: AURORA-458
>                 URL: https://issues.apache.org/jira/browse/AURORA-458
>             Project: Aurora
>          Issue Type: Bug
>          Components: UI
>            Reporter: Bill Farner
>            Assignee: David McLaughlin
>            Priority: Critical
>         Attachments: Screen Shot 2014-05-22 at 11.42.24 AM.png, Screen Shot 2014-05-22
at 11.44.27 AM.png
>
>
> The web interface is noticeably more sluggish since the revamp.  This is most noticeable
for large jobs, where the job page may display a blank page for several seconds before showing
anything useful.  We need to adapt the API to reduce the amount of data fetched to render
these pages.



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