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https://issues.apache.org/jira/browse/CLOUDSTACK-9466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15432358#comment-15432358
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ASF GitHub Bot commented on CLOUDSTACK-9466:
--------------------------------------------
Github user rhtyd commented on the issue:
https://github.com/apache/cloudstack/pull/1656
@blueorangutan package
> Upgrading to older CloudStack 4.0.x to 4.1.x causes sql contraint errors
> ------------------------------------------------------------------------
>
> Key: CLOUDSTACK-9466
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9466
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Reporter: Rohit Yadav
> Assignee: Rohit Yadav
> Fix For: 4.10.0, 4.9.1
>
>
> In one of the upgrade tests, in one of the upgrade paths a key contraint
> error occurs due to missing entry in the migration:
> 2016-08-22 14:42:09,060 DEBUG [c.c.u.d.Upgrade410to420] (main:null) (logid:)
> Migrating NFS secondary storage to Image store
> 2016-08-22 14:42:09,080 DEBUG [c.c.u.d.Upgrade410to420] (main:null) (logid:)
> Marking NFS secondary storage in host table as removed
> 2016-08-22 14:42:09,099 DEBUG [c.c.u.d.Upgrade410to420] (main:null) (logid:)
> Completed migrating secondary storage to image store
> 2016-08-22 14:42:09,099 DEBUG [c.c.u.d.Upgrade410to420] (main:null) (logid:)
> Updating volume_store_ref table from volume_host_ref table
> 2016-08-22 14:42:09,114 ERROR [c.c.u.d.Upgrade410to420] (main:null) (logid:)
> Unable to migrate volume_host_ref.Cannot add or update a child row: a foreign
> key constraint fails (`cloud`.`volume_store_ref`, CONSTRAINT
> `fk_volume_store_ref__store_id` FOREIGN KEY (`store_id`) REFERENCES
> `image_store` (`id`) ON DELETE CASCADE)
> com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException:
> Cannot add or update a child row: a foreign key constraint fails
> (`cloud`.`volume_store_ref`, CONSTRAINT `fk_volume_store_ref__store_id`
> FOREIGN KEY (`store_id`) REFERENCES `image_store` (`id`) ON DELETE CASCADE)
> >---at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> >
> >---at
> >sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
> >---at
> >sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> >---at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> On analysis it was found that nfs storage that were removed were not migrated
> causing discrepancy in migrated data. Later when volumes/templates are
> migrated it causes sql constraint issues as the nfs sec storage it refers
> does not exist.
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