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https://issues.apache.org/jira/browse/AMBARI-12885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Thorpe updated AMBARI-12885:
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    Status: Open  (was: Patch Available)

> Dynamic stack extensions - install and upgrade support for custom services
> --------------------------------------------------------------------------
>
>                 Key: AMBARI-12885
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12885
>             Project: Ambari
>          Issue Type: New Feature
>          Components: ambari-agent, ambari-server, ambari-web
>            Reporter: Tim Thorpe
>            Assignee: Tim Thorpe
>         Attachments: AMBARI-12885.patch, Dynamic Stack Extensions - High 
> Level Design v4.pdf
>
>
> The purpose of this proposal is to facilitate adding custom services to an 
> existing stack.  Ideally this would support adding and upgrading custom 
> services separately from the core services defined in the stack.  In 
> particular we are looking at custom services that need to support several 
> different stacks (different distributions of Ambari).  The release cycle of 
> the custom services may be different from that of the core stack; that is, a 
> custom service may be upgraded at a different rate than the core distribution 
> itself and may be upgraded multiple times within the lifespan of a single 
> release of the core distribution.    
> One possible approach to handling this would be dynamically extending a stack 
> (after install time).  It would be best to extend the stack in packages where 
> a stack extension package can have one or more custom services.



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