[jira] [Resolved] (AMBARI-22544) Upgrade from Ambari 2.5.2 to 2.6.0 fails

["Myroslav Papirkovskyi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-22544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Myroslav Papirkovskyi resolved AMBARI-22544.
--------------------------------------------
    Resolution: Fixed

Pushed to trunk and branch-2.6

> Upgrade from Ambari 2.5.2 to 2.6.0 fails
> ----------------------------------------
>
>                 Key: AMBARI-22544
>                 URL: https://issues.apache.org/jira/browse/AMBARI-22544
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.6.1
>            Reporter: Myroslav Papirkovskyi
>            Assignee: Myroslav Papirkovskyi
>            Priority: Blocker
>             Fix For: 2.6.1
>
>
> When upgrading from Ambari 2.5.2 to Ambari 2.6.0, we hit this error preventing from completing the ambari-server upgrade.
> {noformat}
> 20 Nov 2017 11:39:08,115 ERROR [main] SchemaUpgradeHelper:202 - Upgrade failed.
> com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`ambari_01`.`clusters`, CONSTRAINT `FK_clusters_upgrade_id` FOREIGN KEY (`upgrade_id`) REFERENCES `upgrade` (`upgrade_id`))
> {noformat}
> To get around this, he had to restore the db backup from 2.5.3 and adjust a table in mysql with ‘update clusters set upgrade_id = null’ so a record in the ‘upgrades’ table could be removed.



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