Considerations for Rulesets | Teradata Vantage - 17.10 - Considerations for Rulesets - Advanced SQL Engine - Teradata Workload Management

Teradata Vantageā„¢ - Workload Management User Guide

Product
Advanced SQL Engine
Teradata Workload Management
Release Number
17.10
Release Date
July 2021
Content Type
Administration
User Guide
Publication ID
B035-1197-171K
Language
English (United States)

For normal operating procedures, Teradata recommends that sites rely on a single ruleset. However, you can create varied states to define how TASM allocates resources during different times of the day, different days of the month, or when external conditions or system-wide events degrade system performance. Moving from one state to another, due to planned or unplanned circumstances, results in an automatic change in the workload management settings. Only one state in one ruleset can be in effect at a time. For more information on states, see States and Events Overview.

Within a ruleset, each rule (specifically, session control, filter, system throttle, or Workload Definition) is divided into fixed attributes and working values. Fixed attributes do not change when the system state changes; however, working values for a rule can change to meet the needs of a particular state or planned environment.