NodesManagement UpdateNode fails

Last Updated: May 22, 2014 01:30PM CEST
After an update to a new DataCenter version, you tried to update the remaining nodes onto a new clent software (GUI->System->NodesManagement->[Update Nodes(s)]).

This action fails with the message

Query "SELECT n FROM Node n WHERE (LOWER(n.hostname) = LOWER(:hostname) AND LOWER(n.domainname) = LOWER(:domainname)) AND (n.isDeleted = false OR n.isDeleted is null)" selected no result, but expected unique result.

The message appears in a popup window as well as in C:\programdata\novastor\datacenter\gui-client\gui.log.

Please proceed as follows:
Acknowledge the message popup window using button [OK].
Navigate to GUI->System->NodesManagement.
Mark entry for commandserver system and use context menu (right-mouse) Edit->ManageAddress.
Set Hostname to the FQDN, if it was a short name (or to short name, if it was FQDN).

Perform the update of the client version on the nodes.

Set Hostname back to the former value in Edit->ManageAddress.
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