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vCloud Director Database Issues

04/09/2013

We had a situation recently where vCloud Director 1.5.1 (that’s one-dot-five-dot-one, not five-dot-one) failed to delete an external network, giving this error:

Could not execute JDBC batch update
– The DELETE statement conflicted with the REFERENCE constraint “allocated_ip_add_fk”. The conflict occurred in database “vCloud”, table “dbo.network_assigned_ip”, column ‘allocated_ip_add_id’.

This indicates that the record in the network_assigned_ip table cannot be deleted because it has a reference to a record in another table.

I had previously deleted all the related vApp networks and org networks and removed any stranded items.

To find the erroneous record, we first obtained the logical network id based on the network name:

Select * from [vCloud].[dbo].[logical_network] where name like ‘%BAD_NET%’ –note the network name has been set to “BAD_NET”

This returned one record, the first column value is the logical network ID, so we’re going to use this value to identify any assigned IP addresses in that logical networks via this query:

SELECT * from network_assigned_ip where logical_net_id = 0xLOGICALNETWORKID –replace with correct Logical network id value from previous query

Yes, I know how to do an INNER JOIN, but that’s not the point…

At this point, we had no left over IP addresses for that network, so we deleted the errant record from the logical_network table.

Now, the external network no longer appears, but everything’s not rosy.

vCD will only let you bind one network to a given port group and the database indicates that the port group I need to bind to a new external network is still in use. In my case this query was expected to have a record for the port group but did not:

Select * from [dbo].[ui_portgroups_avail_list_view

This information is stored in two different tables; vlan_in_use and real_network. Searching the vlan_in_use table for my VLAN ID did not return any records, so there must be a lingering item in real_network. I found it by querying the real_networks table and deleted that record.

Now ui_portgroups_avail_list_view includes a record for my port group, so I’m good-to-go.

Hopefully this information will be helpful to someone. I strongly suggest working with VMware support and having a case open and a very recent database backup before making any changes to the vCloud database.

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  1. christopher@lohman.co
    10/04/2013 at 8:36 am

    Brian this was just helpful to me. Thanks!

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