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Caution

Grafana Alloy is the new name for our distribution of the OTel collector. Grafana Agent has been deprecated and is in Long-Term Support (LTS) through October 31, 2025. Grafana Agent will reach an End-of-Life (EOL) on November 1, 2025. Read more about why we recommend migrating to Grafana Alloy.

Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.

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Configure Grafana Agent clustering in an existing installation

You can configure Grafana Agent to run with clustering so that individual agents can work together for workload distribution and high availability.

Note

Clustering is a beta feature. Beta features are subject to breaking changes and may be replaced with equivalent functionality that covers the same use case.

This topic describes how to add clustering to an existing installation.

Configure Grafana Agent clustering with Helm Chart

This section will guide you through enabling clustering when Grafana Agent is installed on Kubernetes using the Grafana Agent Helm chart.

Before you begin

  • Ensure that your values.yaml file has controller.type set to statefulset.

Steps

To configure clustering:

  1. Amend your existing values.yaml file to add clustering.enabled=true inside of the agent block:

    yaml 
    agent:
  clustering:
    enabled: true

  2. Upgrade your installation to use the new values.yaml file:

    bash 
    helm upgrade RELEASE_NAME -f values.yaml

    Replace RELEASE_NAME with the name of the installation you chose when you installed the Helm chart.

  3. Use UI to verify the cluster status:

    1. Click Clustering in the navigation bar.

    2. Ensure that all expected nodes appear in the resulting table.