Configure Failover with an External DSC | Teradata Data Mover - 17.11 - Configuring Failover for Data Mover Using an External DSC - Teradata Data Mover

Teradata® Data Mover Installation, Configuration, and Upgrade Guide for Customers

Product
Teradata Data Mover
Release Number
17.11
Release Date
October 2021
Content Type
Administration
Configuration
Installation
Publication ID
B035-4102-091K
Language
English (United States)
Refer to the following failover configuration steps when running DSA on an external server.
  1. Configure the standby Data Mover daemon to use the external DSC by editing /etc/opt/teradata/datamover/daemon.properties with the following information:
    dsa.rest.endpoint=http://external_dsc_host:9090/dsa
    is.dsc.colocate.dm=false
    If the external DSA REST server is configured with HTTPS, replace http with https in the dsa.rest.endpoint codeblock above.
  2. Stop the DSC on the standby host using the /etc/init.d/dsc stop command.
  3. Run dmcluster status and verify that the DSC and DSA REST components are marked EXTERNAL on both the active and standby Data Mover hosts.
    If the DSC or DSA REST component is marked RUNNING or STOPPED, verify that the is.dsc.colocate.dm property is set in the daemon.properties file as false.
    If Data Mover failover occurs, the Data Mover failover monitor automatically fails over to the standby Data Mover server. If the external DSA fails, both active and standby Data Mover servers need to be reconfigured to use the new DSC. See Configuring Data Mover to Use an External DSC.