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Posted to issues@ambari.apache.org by "Andrii Tkach (JIRA)" <ji...@apache.org> on 2016/04/27 17:22:12 UTC

[jira] [Created] (AMBARI-16139) Duplicate Dashboard metrics API calls should not be made in parallel

Andrii Tkach created AMBARI-16139:
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             Summary: Duplicate Dashboard metrics API calls should not be made in parallel
                 Key: AMBARI-16139
                 URL: https://issues.apache.org/jira/browse/AMBARI-16139
             Project: Ambari
          Issue Type: Bug
          Components: ambari-web
    Affects Versions: 2.1.2
            Reporter: Andrii Tkach
            Assignee: Andrii Tkach
            Priority: Critical
             Fix For: 2.4.0
         Attachments: Screen Shot 2016-04-26 at 1.37.01 PM.png

Graphs on Cluster dashboard page keeps making API calls irrespective of the previous APIs call have completed or not. Thus on a cluster where AMS is behaving there are multiple same API calls in pending state and results into ambari-server unresponsive.

For Graph widgets, ajax calls should be made from the complete callback function of the same ajax call. so until an ajax call is not finished, the same ajax is not triggered again

we do this in correct way for enhanced service dashboard on service summary page 



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