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From "Tom Beerbower (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-3677) Service state should accurately reflect state of host-components
Date Mon, 04 Nov 2013 10:12:17 GMT
Tom Beerbower created AMBARI-3677:
-------------------------------------

             Summary: Service state should accurately reflect state of host-components
                 Key: AMBARI-3677
                 URL: https://issues.apache.org/jira/browse/AMBARI-3677
             Project: Ambari
          Issue Type: Task
            Reporter: Tom Beerbower
            Assignee: Tom Beerbower


Currently the UI loads *all* the host-components for a service just to calculate the status
of a service. So if YARN, HDFS are installed on a 1000 node cluster, we get 2000 host-components
in response just to calculate the color of 2 services (stopped=red, started=green, starting=blinking-green,
stopping=blinking-red, etc., unknown=yellow)

This is not scalable on the browser. We want the API to roll-up the host-component statuses,
and correctly update the {{ServiceInfo/state}} of the service. This will help UI in not loading
all host_components.



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