The Workload Designer portlet does not contain a default Teradata Dynamic Workload Manager (TDWM) rule to limit query concurrency for the import and export Teradata Fabric table operators (such as QGInitiatorImport, QGInitiatorExport, QGRemoteImport, and QGRemoteExport).
It is recommended that you create a custom rule in TDWM to set the concurrency limit for these operators, using a range of 6 to 8 concurrent queries under typical circumstances. You can increase this limit to 50 or more queries, but keep in mind that when you increase concurrency, there is a cost in terms of query latency. If a rule contains multiple objects of the same type, then the objects are logically tied together with an OR. A best practice is to not include objects other than functions when you create throttle rules for the connector table operators.
For information about TASM throttle rules, see Teradata® Database Workload Management User Guide, B035-1197.
For more detailed information about using Viewpoint Workload Designer, see Teradata® Viewpoint User Guide, B035-2206.