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https://issues.apache.org/jira/browse/AMBARI-21555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16097073#comment-16097073
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Di Li commented on AMBARI-21555:
--------------------------------
pushed to branch-2.5 as
https://git-wip-us.apache.org/repos/asf?p=ambari.git;a=commit;h=61df6972d3105baf2dd7718fe0d26c711d23beed
> Hive restart fails to restart MySQL after Ambari upgrade against IOP 4.2.5
> --------------------------------------------------------------------------
>
> Key: AMBARI-21555
> URL: https://issues.apache.org/jira/browse/AMBARI-21555
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.5.2
> Reporter: Di Li
> Assignee: Di Li
> Fix For: 2.5.2
>
> Attachments: AMBARI-21555.patch
>
>
> IOP uses MariaDB instead of MySQL when a cluster is on RedHat 7. HDP
> 2.6/Ambari 2.5.2 is yet to support MariaDB. A special flag is introduced to
> switch daemon type for migrated clusters. Currently the flag is added during
> EU to handle both IOP 4.2 and 4.2.5. We also need this flag to be added
> during Ambari upgrade for IOP 4.2.5 to restart MySQL ( IOP 4.2 is
> self-contained, thus not need this flag for restarting MySQL)
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