[jira] [Created] (AMBARI-14281) EU/RU can fail if register a repo without a build number that already exists, add PreCheck

["Alejandro Fernandez (JIRA)" <ji...@apache.org>]

Alejandro Fernandez created AMBARI-14281:
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             Summary: EU/RU can fail if register a repo without a build number that already exists, add PreCheck
                 Key: AMBARI-14281
                 URL: https://issues.apache.org/jira/browse/AMBARI-14281
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.2.0
            Reporter: Alejandro Fernandez
            Assignee: Alejandro Fernandez
             Fix For: 2.2.0


If a cluster has version x (e.g., HDP 2.3.2.0-2950) as CURRENT, and the user registers a Repository Version such as 2.3.xx that uses different build URLs but results in the same build number, then installing packages will be a no-op.
This means that no new version will be detected using the "deltas" method and the repo_version entity will keep the "version" field without a build number, and the Cluster Version entity will transition into INSTALLED (since technically it is already installed).

This incorrect setup will allow the user to start a RU/EU, which will immediately fail since the Repo Version has no build number, which is needed by hdp-select. 

The fix is to add a PreCheck that ensures that all repos contain a build number.



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