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https://issues.apache.org/jira/browse/AMBARI-18951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Myroslav Papirkovskyi resolved AMBARI-18951.
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Resolution: Fixed
Pushed to trunk and branch-2.5
> Force InnoDB usage for MySQL
> ----------------------------
>
> Key: AMBARI-18951
> URL: https://issues.apache.org/jira/browse/AMBARI-18951
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.4.2
> Reporter: Myroslav Papirkovskyi
> Assignee: Myroslav Papirkovskyi
> Priority: Critical
> Fix For: 2.5.0
>
> Attachments: AMBARI-18951.patch
>
>
> We should always use InnoDB as database engine for MySQL as database with
> MyISAM engine cannot be upgraded properly.
> Key reason is that MyISAM doesn't store foreign keys information, but do
> store indexes with same name which lead to conflicts during upgrade.
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