Partial Unity Process Failures | Teradata Unity - Partial Unity Process Failures - Teradata Unity

Teradata® Unity™ User Guide

Product
Teradata Unity
Release Number
16.51
Published
May 2020
Language
English (United States)
Last Update
2020-06-01
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dita:id
B035-2520
lifecycle
previous
Product Category
Analytical Ecosystem

The Unity software stack consists of four components: the Endpoint, Watchdog, Sequencer, and Dispatcher. These components include built-in high availability. The Unity Watchdog, Endpoint, and Dispatcher have built-in automatic capabilities to handle failures. The dispatcher always has an associated standby process running on the second Unity server. That server becomes active immediately if the active dispatcher for a Teradata system fails. All of the processes restart automatically if they fail unexpectedly, after a period of 5 minutes (for the Endpoint, Sequencer, or Dispatcher) or 10 minutes (for the Watchdog).