Cannot register new minions into SUSE Manager because of error A different object with the same identifier value ....

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Environment

SUSE Manager 4.3 Server
SUSE Manager 4.2 Server

Situation

Lately the SUSE Manager server has been registered as a minion to itself.

Fully working environment of SUSE Manager suddenly cannot register any new minions, and the error always is the same in
/var/log/rhn/rhn_web_ui.log
and looks like this at every attempt to register a new minion :

ERROR com.suse.manager.reactor.messaging.RegisterMinionEventMessageAction - Error registering minion id: *MINION*
org.hibernate.NonUniqueObjectException: A different object with the same identifier value was already associated with the session : [com.redhat.rhn.domain.server.ServerPath#com.redhat.rhn.domain.server.ServerPathId@12345678[server=com.redhat.rhn.domain.server.MinionServer@9876543[id=1000010004,org=com.redhat.rhn.domain.org.Org@3456789[id=1,name=*ORG*],name=*MINION*,description=<null>,machineId=1234567890abcdef0987654321fedcba,minionId=*MINION*],proxyServer=com.redhat.rhn.domain.server.MinionServer@87654321[id=1000010002,org=com.redhat.rhn.domain.org.Org@12345678[id=1,name=*ORG*],name=*MASTER*,description=<null>,machineId=0987654321fedcba1234567890abcdef,minionId=*MASTER*]]]

Resolution

From the SUSE Manager server webGUI, find and delete the SUSE Manager minion, and then new minions will register again without error.

Cause

Registering the SUSE Manager server as a minion to itself is not supported. The registration of the SUSE Manager server as a minion to itself will work, but break registration of new minions.:

Additional Information

https://documentation.suse.com/suma/4.3/en/suse-manager/client-configuration/registration-webui.html
Do not register the SUSE Manager Server to itself. The SUSE Manager Server must be managed individually

Disclaimer

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