What file do you have to update for on-premise High Availability?

To enable High Availability (HA) in an on-premise Appian environment, the appropriate file to update is the appian-topology.xml. This file defines the topology of your Appian nodes, detailing how they are organized and their roles within the system, including configurations specific to HA setups.

When configuring HA, it is essential to ensure that the nodes are recognized as part of a clustered environment, which is primarily managed through entries in the appian-topology.xml file. This file dictates how each node interacts with one another, allowing for load balancing, redundancy, and failover capabilities that are critical for a high-availability scenario.

By modifying the appian-topology.xml file, you can specify attributes like the node name, type, and other parameters that contribute to the high-availability configuration. This includes setting up the necessary communication protocols and ensuring that nodes are aware of one another, thus enabling seamless operation even in the event of a node failure.

In contrast, other files mentioned, while serving important roles in the overall configuration of an Appian environment, do not specifically relate to the high-availability setup. For example, appian-config.properties is mainly for general configuration settings, high-availability-settings.xml may contain specific HA configurations but is not