MDS Action Processor - Teradata Meta Data Services

Teradata Meta Data Services User Guide

Product
Teradata Meta Data Services
Release Number
15.00
Language
English (United States)
Last Update
2018-09-27
Product Category
Teradata Tools and Utilities

MDS Action Processor

The MDS Action Processor is responsible for polling the Audit Log for expired entries and purging the expired entries. The MDS Action Processor is also responsible for sending messages to the MDS DDL Gateway to initiate scheduled recovery.

The MDS Action Processor runs on Windows or Linux and only one MDS Action Processor can be run.

The Action Poll Rate defined in the MetaManager System-Wide Parameters defines the frequency that the MDS Action Processor will reread the MDS system settings to pick up changes to the Audit Flag, Audit Trail Expiration Days, and DIM Update Recovery Schedule for each Teradata System object. The default setting for the Action Poll Rate is 5 minutes. The Action Poll Rate can be increased to a maximum of 1440 minutes (24 hours).

The MDS Action Processor will poll the MDS Audit Trail every 24 hours at 1:30 a.m. local time to remove expired entries in the Audit Trail.

A Recovery Schedule is configured in MDS for each Teradata Database System. The MDS Action Processor will monitor the schedule times for each Teradata system and send a message to the MDS DDL Gateway server when scheduled recovery is to be performed on each system.