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https://issues.apache.org/jira/browse/AMBARI-11935?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Di Li resolved AMBARI-11935.
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Resolution: Duplicate
> Rolling upgrade after a downgrade fails the precheck with error "All hosts
> should have target version installed"
> ----------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-11935
> URL: https://issues.apache.org/jira/browse/AMBARI-11935
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.1.0
> Reporter: Di Li
> Assignee: Di Li
> Fix For: 2.1.0
>
>
> 1. Perform rolling upgrade
> 2. Clicked Downgrade once it reached the "Finalize" step.
> 3. Once the downgrade finished successfully, went to the "Stack and
> Versions" page and clicked the Rolling upgrade button.
> 4. The rolling upgrade failed the precheck with error "All hosts should have
> target version installed"
> The binaries (RPMs) however were installed.
> This seems to be a issue in the database and the
> HostsRepositoryVersionCheck.java where the check expects the BI 4.1 repo on
> each host to be in the "INSTALLED" state, whereas the database still has the
> state as "UPGRADED" after the downgrade.
> Workaround is to click the "Reinstall Packages" button first, wait for the
> reinstall to finish (should be very quickly as the RPMs were already
> installed), then click Rolling Upgrade.
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