15.00 - Deferred Transaction Recovery - Teradata Database

Teradata Database Utilities

Product
Teradata Database
Release Number
15.00
Content Type
Configuration
Publication ID
B035-1102-015K
Language
English (United States)
Last Update
2018-09-25

Deferred Transaction Recovery

If the Teradata Database system crashes, a COLD restart is activated and an online transaction recovery or deferred recovery is started. The only time a deferred recovery is not done is when the operator enters a COLDWAIT restart.

Deferred transaction recovery allows new transactions to come in from the connected hosts. The process of bringing the Teradata Database system up after a crash causes the locks to be set. If new transactions should attempt to reference the inconsistent data of the to-be-rolled-back transactions, they are blocked until the recovery process restores the data and releases the lock.