Share a Tip

Run Event Service as a single-node cluster

Maciej_Popek
Engager

Hello, 

Per the official AppDynamics documentation, a single node Event Service cluster is not supported for production and should be used for PoV or testing purposes only. By default Event Service will be installed as "production" deployment, and expects such deployment to be on, hence it will fail/crash if it is run on single node.

To run a Single node, you will need to configure the events-service-api-store.yml accordingly:

  1. Comment out the following line (by putting "#" in front of the below line):

    cluster.initial_master_nodes: ${ad.es.cluster.initial_master_nodes}
  2. Add the following line under the above:

    discovery.type: single-node
  3. Comment out the following line  (by putting "#" in front of the below line):
    discovery.seed_hosts: ${ad.es.node.unicast.hosts}
  4. Restart Event Service to apply new configs.

Reference:
https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html#single-node-di...

If you encounter any issues when running the above configurations, please reach out to the AppDynamics support organization.

Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Cisco Data Fabric from Architecture to Investigation, Better SOC Visibility, and More ...

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...

The Trust Gap: Why a Data Foundation is Fundamental to an Agentic Enterprise

The Trust Gap: Why a data foundation is fundamental to an  Agentic Enterprise.   Agentic AI is transforming ...

Data Management Digest – September 2026

    Welcome to the September 2026 edition of Data Management Digest! September brought a fresh wave of ...