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https://issues.apache.org/jira/browse/CLOUDSTACK-6195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei Zhou closed CLOUDSTACK-6195.
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Resolution: Invalid
> an ACS db upgraded from Pre-4.0 version is missing unique key constraint on
> host_details
> ----------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-6195
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6195
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Upgrade
> Affects Versions: 4.0.0, 4.0.1, 4.0.2, 4.1.0, 4.1.1, 4.2.0, 4.2.1, 4.1.2
> Environment: Pre-4.0 db upgraded to 4.x. We have confirmed this bug
> in a db that started out as 2.2.14.
> Reporter: Joris van Lieshout
>
> This is the table in our 4.2.1 env that has been upgraded from 2.2.14.
> CREATE TABLE `host_details` (
> `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
> `host_id` bigint(20) unsigned NOT NULL COMMENT 'host id',
> `name` varchar(255) NOT NULL,
> `value` varchar(255) NOT NULL,
> PRIMARY KEY (`id`),
> KEY `fk_host_details__host_id` (`host_id`),
> CONSTRAINT `fk_host_details__host_id` FOREIGN KEY (`host_id`) REFERENCES
> `host` (`id`) ON DELETE CASCADE
> ) ENGINE=InnoDB AUTO_INCREMENT=752966 DEFAULT CHARSET=utf8;
> And this is the table of a fresh 4.x install:
> CREATE TABLE `host_details` (
> `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
> `host_id` bigint(20) unsigned NOT NULL COMMENT 'host id',
> `name` varchar(255) NOT NULL,
> `value` varchar(255) NOT NULL,
> PRIMARY KEY (`id`),
> UNIQUE KEY `uk_host_id_name` (`host_id`,`name`),
> KEY `fk_host_details__host_id` (`host_id`),
> CONSTRAINT `fk_host_details__host_id` FOREIGN KEY (`host_id`) REFERENCES
> `host` (`id`) ON DELETE CASCADE
> ) ENGINE=InnoDB AUTO_INCREMENT=242083 DEFAULT CHARSET=utf8;
> The effect of this missing bug is a lot of duplicate entries in the
> host_details table. The duplicate information on the host_details table
> causes the api call listHosts to return the same host tag multiple time (to
> be exact: the number of duplicate entries in the host_details table for that
> host).
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