16.10 - Detecting Skew - Teradata Workload Management

Teradata Database Workload Management User Guide

prodname
Teradata Workload Management
vrm_release
16.10
created_date
June 2017
category
Administration
User Guide
featnum
B035-1197-161K

Either CPU or I/O skew percent exceptions can indicate skew. TASM exceptions detect skewed requests based on the number of AMPs active in the request step. A group-AMP request that uses about the same processing time for each AMP involved would not be detected as skewed, even though some AMPs are not affected by the request.