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How to modify existing ports on your on-premise Appian installation

Purpose

Starting from Appian 17.2, Appian has default ports configured to your setup based on the port usage documentation link: Port Usage

Instructions

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Kafka

Zookeeper - Cannot be changed. (2181) - appian-topology XML allows users to specify a zookeeper port, but the actual port used to start Zookeeper is defined via Service Manager configuration. Additionally, port used for Zookeeper internal (i.e. the election port and the intracluster communication port) are hardcoded in Zookeeper.groovy. The topology should be the source of truth for these values.

Data Server - 

Service Manager - Service Manager port (instead of 7070):

This port can be modified by specifying the following in the custom.properties file.
serviceManager.topology.adminPort=<specify a port to use>