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From "Tim Thorpe (JIRA)" <>
Subject [jira] [Created] (AMBARI-18049) Extensions should support repositories
Date Fri, 05 Aug 2016 19:07:20 GMT
Tim Thorpe created AMBARI-18049:

             Summary: Extensions should support repositories
                 Key: AMBARI-18049
             Project: Ambari
          Issue Type: New Feature
          Components: ambari-server
    Affects Versions: trunk
            Reporter: Tim Thorpe
            Assignee: Tim Thorpe

Extensions generally contain custom services.  These custom services are usually not included
in the stack's repositories.  This means that when you link an extension version to a stack
version and want to install the extension's custom services, you first need to add a repositories.

Extensions should include their own repos/repoinfo.xml.  Then ambari can handle the new repositories

Here are the two possible scenarios:

A) Install cluster using HDP-2.5
B) Add extension EXT-1.0
C) Link EXT-1.0 to HDP-2.5
D) Install services from EXT-1.0

1) Add extension EXT-1.0
2) Link EXT-1.0 to HDP-2.5
3) Install cluster using HDP-2.5 including services from EXT-1.0

In the first case during step A, HDP-2.5's repoinfo.xml is used to populate the repositories
in the repo_version table. During step C, EXT-1.0's repoinfo.xml is used to add additional
repositories to the repo_version table.

In the second case during step 3, both HDP-2.5's and EXT-1.0's repoinfo.xml files are used
to populate the repositories in the repo_version table.

Unlinking EXT-1.0 from HDP-2.5 would need to remove the extension's repositories from the
repo_version table. This would use the repo_id because the repo_url may have been changed
by the user.

During the linking process (extension version to stack version), there would be a check to
ensure that the extension does not duplicate any repo_ids or repo_urls that exist within the

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