2.05 - Scalability - Teradata Listener

Teradata® Listener™ User Guide

Teradata Listener
March 2019
User Guide

The Teradata Listener Ingest micro-service receives and pushes data into the Listener data pipeline to stream to a target. Ingest is the only way to send data to a Listener instance.

Increasing the number of ingest instances increases the rate that data loads into Listener, but not the rate that Listener processes the data.

The Listener micro-services platform manages the automatic scaling of micro-services based on a pre-configured resource usage profile. Ingest is the only scalable micro-service, which is configurable by Listener administrators.

The auto-scaling paradigm for each supported micro-service is configured by an administrator who sets the maximum number of micro-service replicas using either the API or UI. Administrators cannot change the minimum setting for Ingest instances.

Header Description
name AutoScaler name.
max_replicas Maximum instances Ingest-services can scale up to.
min_replicas Minimum instances Ingest-services can scale down to.
current_replicas Number of currently running instances of Ingest-services.
last_scale_time Timestamp of when the ingest-service was scaled up or down.
replicas_available Total number of replicas available (calculated based on resources available).