Estimate Time Need to Reassign Maps | Teradata Vantage - Estimating the Time Needed to Reassign Maps - Analytics Database - Teradata Vantage

Database Administration

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-11-03
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pgf1628096104492.ditamap
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ujp1472240543947
lifecycle
latest
Product Category
Teradata Vantageā„¢
To see an estimate of the time needed for planned map reassignments, you can use any of the following methods:
  • Add the table to DBC.ReconfigRedistOrderTbl and run the Reconfig estimator.
  • Experiment with INSERT-SELECT or ALTER TABLE on sample data.
  • Use DBQL step logging to log CPU and I/O for each step. Scale up the numbers to arrive at an estimate.

Use MONITOR SESSION to compare estimates with actual times.