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https://issues.apache.org/jira/browse/AMBARI-15374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Lysnichenko updated AMBARI-15374:
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Status: Patch Available (was: Open)
> Check To Ensure That All Components Are On The Same Version Before Upgrading
> ----------------------------------------------------------------------------
>
> Key: AMBARI-15374
> URL: https://issues.apache.org/jira/browse/AMBARI-15374
> Project: Ambari
> Issue Type: Task
> Components: ambari-server
> Reporter: Dmitry Lysnichenko
> Assignee: Dmitry Lysnichenko
> Attachments: AMBARI-15374.patch
>
>
> Before beginning an upgrade, there should be a pre-upgrade check which
> ensures that all known, versionable components are reporting the same
> version. If any host component is reporting a version which does not match
> the current repository version, then a warning should be produced. The
> warning should provide information on the failed components, the expected
> version, and the version they are reporting.
> Note that this is only for Ambari 2.2.x; Ambari 2.4.0 uses a new workflow for
> how versions are recorded and stored during upgrade and does not need this.
> There are two ways to go about this:
> - Compare each service component host version to that of the {{CURRENT}}
> {{repo_version}}. However, there could be cases where the {{repo_version}}
> has not been calculated yet.
> - Compare each service component host version to each other.
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