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ORA-06031:

NETDNT: connect failed, unrecognized object name
Cause: Host string contains reference to object (which doesn't exist): @d:<node>-<obj> => object is ORDN<obj>; when <node> is VMS, the object is ORDN<obj>.COM when <node> is UNIX, the object is ORDN<obj> @d:<node>::"task=<obj>" => object is <obj>; when <node> is VMS, the object is <obj>.COM when <node> is UNIX, the object is <obj>
Action: Retry with correct object name or create the required object on host node