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From "Andrii Tkach (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-12212) When visiting Hosts page, UI makes two duplicated calls (performance issue)
Date Tue, 30 Jun 2015 14:28:04 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-12212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14608376#comment-14608376
] 

Andrii Tkach commented on AMBARI-12212:
---------------------------------------

committed to trunk and branch-2.1

> When visiting Hosts page, UI makes two duplicated calls (performance issue)
> ---------------------------------------------------------------------------
>
>                 Key: AMBARI-12212
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12212
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 2.1.0
>            Reporter: Andrii Tkach
>            Assignee: Andrii Tkach
>            Priority: Critical
>             Fix For: 2.1.0
>
>         Attachments: AMBARI-12212.patch, Screen Shot 2015-06-29 at 9.10.18 PM.png
>
>
> UI is making duplicated calls when the user lands on Hosts page (same exact query parameters
and form data).
> One of these calls is very expensive (BE takes a while to come back - on a 400-node cluster
it took 10 seconds).
> See attached.
> We need to remove this redundant calls because this is an area where perf degradation
is most pronounced and visible.



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