[jira] [Created] (AMBARI-20402) Assign Slaves and Clients page displays incorrect configuration unless a change is made in Assign Masters page

["Sangeeta Ravindran (JIRA)" <ji...@apache.org>]

Sangeeta Ravindran created AMBARI-20402:
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             Summary: Assign Slaves and Clients page displays incorrect configuration unless a change is made in Assign Masters page
                 Key: AMBARI-20402
                 URL: https://issues.apache.org/jira/browse/AMBARI-20402
             Project: Ambari
          Issue Type: Bug
          Components: ambari-web
    Affects Versions: 2.5.0
            Reporter: Sangeeta Ravindran
            Assignee: Sangeeta Ravindran
         Attachments: AssignSlavesAndClients_AfterChanges.jpg, AssignSlavesAndClients_BeforeChanges.jpg

1. On a multi-node cluster (for e.g. 5-node cluster), run the ambari install wizard.
2. Do not change defaults and navigate to Step 6 (Assign Slaves and Clients). 
3. The recommended configuration does not seem to be place the components well. For e.g., DataNodes are recommended on all 5 nodes. (see AssignSlavesAndClients_BeforeChanges.jpg).
4. Navigate back to Step 5 (Assign Masters). Make a change. For e.g. move the Atlas Metadata Server to a different host. Next, change it back to the original host so that in effect nothing has changed.
5. Now move to Step 6 again and see that the configuration has changed and seems more in line with best practices although effectively nothing has changed in the Assign Masters page. (see AssignSlavesAndClients_AfterChanges.jpg)



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