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From "Joris van Lieshout (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-6195) an ACS db upgraded from Pre-4.0 version is missing unique key constraint on host_details
Date Tue, 04 Mar 2014 12:50:20 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-6195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13919341#comment-13919341
] 

Joris van Lieshout commented on CLOUDSTACK-6195:
------------------------------------------------

Hi Wei Zhou,

We were really looking forward to 4.x I guess. :) Anyway, this explains the issue. We've already
fixed the constraint and will be doing a schema compare to make sure this was the only discrepancy.
I've created this ticket as a courtesy just in case any one else would run into this. Good
to hear we're probably the only one. :)
For me case closed as "non-issue".

Thanks again!

> 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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