Database Crash and Recovery - Teradata Tools and Utilities

Teradata® Call-Level Interface Version 2 Reference for Mainframe-Attached Systems - 17.20

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
Lake
VMware
Product
Teradata Tools and Utilities
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2023-11-17
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vfj1470443597526
Product Category
Teradata Tools and Utilities

When the database detects an internal error that prevents it from continuing, it stores diagnostic information and reinitialize itself. This event is called a crash (or reset). After the database reinitializes, it rolls back any incomplete transactions or requests in progress. This process is called a recovery.

When an AP on an AP/1012 or 3600 system is taken down or encounters an internal error that prevents it from continuing, it shuts down. This event is called an AP reset. Any incomplete transactions or requests in progress for sessions connected through that AP are rolled back. Sessions connected through any other APs are unaffected.