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From "Andrii Tkach (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-13054) Pre-Req Endpoint Should Be Used For Determining Upgrade Button Visibility
Date Thu, 10 Sep 2015 11:04:45 GMT
Andrii Tkach created AMBARI-13054:
-------------------------------------

             Summary: Pre-Req Endpoint Should Be Used For Determining Upgrade Button Visibility
                 Key: AMBARI-13054
                 URL: https://issues.apache.org/jira/browse/AMBARI-13054
             Project: Ambari
          Issue Type: Task
          Components: ambari-web
    Affects Versions: 2.1.2
            Reporter: Andrii Tkach
            Assignee: Andrii Tkach
            Priority: Critical
             Fix For: 2.1.2


The web client currently uses a combination of host names, host_state, and stack versions
to determine if an upgrade should be able to be performed for a given stack. If any of the
hosts are missing the correct stack, then the option to upgrade to that stack is not permitted.
The upgrade should be allowed, however, if the hosts which are missing the required stack
are also in maintenance mode.
The web client should begin using the prerequisite check API endpoint in order to calculate
if the "Upgrade" button is to be visible for a specific stack. This allows the logic for calculating
whether at stack is ready upgrade to remain on the Ambari Server.



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