This section explains Teradata TPump’s handling of restart and recovery operations in the event of a system failure.
The Teradata TPump facility includes a number of features that enable recovery from client or database system failure, with minimal requirements for job resubmission or continuation. Upon restart or resubmission, Teradata TPump interrogates the restart log table on the database and resumes operations from where it had left off.
Starting with Teradata Tools and Utilities 14.00, a data signature is included in checkpoint information. That data signature is validated during a restart and may result in new errors at the beginning of a restart.