Two Levels of Concurrency Control for Load Utilities in Teradata 13.10 - comment by carrie

A utility throttle evaluates and considers delaying a utility job at the CHECK WORKLOAD END statement.  CHECK WORKLOAD END is an SQL statement that procedes the utility logon.   If a utility job is delayed by a utility throttle the delay will happen before the load utility begins to run and before any sessions supporting the load utility are logged on.   Sessions supporting a utility can only be in the responding state after those sessions have been logged on.   For that reason, sessions in a responding state have no impact on the delay queue. 
 
A utility job holds onto the utility throttle slot until the end of the job, marked by the END LOADING statement.  The utility throttle slot cannot be freed until all AMP sessions are logged off.
 
Thanks, -Carrie