[jira] [Created] (AMBARI-22883) Create hosts per operating system count summary

["Scott Duan (JIRA)" <ji...@apache.org>]

Scott Duan created AMBARI-22883:
-----------------------------------

             Summary: Create hosts per operating system count summary
                 Key: AMBARI-22883
                 URL: https://issues.apache.org/jira/browse/AMBARI-22883
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 3.0.0
            Reporter: Scott Duan
            Assignee: Scott Duan
             Fix For: 3.0.0


In the install wizard, after host registration, we need to know the number of hosts running each possible operating system.

*Example request:*
{code:java}
 GET
http://localhost:8080/api/v1/hosts?format=summary
{code}

Example response:

{code:java}
{    "operating_systems": [        "redhat6": 75,        "debian7": 100
    ]
}
{code}

Note that if there are zero hosts for an operating system type, then it is not included in the array.

This structure allows us to add additional summary information as siblings to "operating_systems" in the future.



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