[jira] [Assigned] (AMBARI-4716) Run Ambari Server Upgrade via code rather than DDL/DML.

["Siddharth Wagle (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-4716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Siddharth Wagle reassigned AMBARI-4716:
---------------------------------------

    Assignee: Myroslav Papirkovskyy  (was: Siddharth Wagle)

Attached initial patch which applies on top of trunk.

> Run Ambari Server Upgrade via code rather than DDL/DML.
> -------------------------------------------------------
>
>                 Key: AMBARI-4716
>                 URL: https://issues.apache.org/jira/browse/AMBARI-4716
>             Project: Ambari
>          Issue Type: Task
>          Components: controller
>    Affects Versions: 1.5.0
>            Reporter: Siddharth Wagle
>            Assignee: Myroslav Papirkovskyy
>             Fix For: 1.5.0
>
>         Attachments: AMBARI-4716.patch
>
>
> Evaluate running Ambari Server Upgrade via code rather than DDL/DML.
> The upgrade procedure has become a mammoth exercise and very error prone. We need to make sure we can do it via java code (which can be unit tested).
> If possible:
> ambari-server upgrade should do any database changes via java code which can use eclipse link to make any changes.
> This change allows devs to be flexible about what we can add in upgrade and also unit test those.



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