Andrii Babiichuk created AMBARI-23302:
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             Summary: Ambari Upgrade from 2.6.0.0 - 2.7.0.0 - Dashboard is 
unable to load and spinner keeps spinning
                 Key: AMBARI-23302
                 URL: https://issues.apache.org/jira/browse/AMBARI-23302
             Project: Ambari
          Issue Type: Bug
          Components: ambari-web
    Affects Versions: 2.7.0
            Reporter: Andrii Babiichuk
            Assignee: Andrii Babiichuk
             Fix For: 2.7.0


After Ambari Upgrade from 2.6.0.0 to 2.7.0.0 , the Ambari UI Dashboard is 
unable to load. Spinner keeps spinning,
Seems like Wizard-Data API calls are returning null and not being handled 
properly on the UI. Ideally, the dashboard should be shown with widgets with No 
data (if AMS is down)
Additional Information:
Adding few more observed issues. These might be related to the originally 
raised issue.
1) Quick Links are not shown for services. Spinner keeps spinning.
2) Component information is not shown for some services. e.g. Oozie.
3) For HDFS, YARN -> DataNodes, NodeManagers keep showing Loading and never 
loads.



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