Splunk AppDynamics

Cluster Agent node name environment variable not found

Chanon_Wonglert
Engager

Hi Community,

I provision cluster agent with auto instrument, cluster and nodes information is showing up correctly in the controller. In clusters Pods, Inventory and Events show the correct information.

But the application is not auto instrumentating and I found these error logs in cluster agent pods. Could you guide me on what the cluster agent looking for? 

[ERROR]: 2021-09-07 03:45:21 - agentregistrationmodule.go:369 - Cluster Agent node name environment variable not found
Labels (1)
0 Karma
1 Solution

iamryan
Community Manager
Community Manager

Hi @Chanon.Wonglertniran,

I found this information. Please let me know if it's helpful.

Make sure this is no mismatch between the operator and cluster-agent versions. 

This AppD Docs page might also be helpful.

 https://docs.appdynamics.com/21.7/en/infrastructure-visibility/monitor-kubernetes-with-the-cluster-a...

View solution in original post

0 Karma

iamryan
Community Manager
Community Manager

Hi @Chanon.Wonglertniran,

I found this information. Please let me know if it's helpful.

Make sure this is no mismatch between the operator and cluster-agent versions. 

This AppD Docs page might also be helpful.

 https://docs.appdynamics.com/21.7/en/infrastructure-visibility/monitor-kubernetes-with-the-cluster-a...

0 Karma

Chanon_Wonglert
Engager

Thank you Ryan,

After match cluster operator and cluster agent compatibility those error logs disappear. 

iamryan
Community Manager
Community Manager

Hi @Chanon.Wonglertniran,

THank you for letting me know! Glad it worked.

0 Karma
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!

SOK it to Me: Top 3 Benefits of Using Splunk Operator on Kubernetes that’ll Make ...

    Thursday, July 9, 2026  |  11:00AM–12:00PM PDT Duration: 1 hour (includes Q&A) Managing can feel like a ...

Upgrade Prep for 10.4, Network Observability Deep Dives, and More from Splunk Lantern

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

Splunk Developer Day announcements: AI agents, MCP tools, Forecasting, and Custom ...

Splunk Developer Day was packed with product and platform updates for developers building in the AI ...