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Fix the “controllerClusterID already being used by another Ocean cluster” message in EKS

You may see the message “controllerClusterID already being used by another Ocean cluster” when you set up an Ocean cluster or enable Ocean Insights. This happens when the cluster identifier is already in use. Each Ocean cluster must have a unique controllerClusterID.

Solution
  1. Check whether the EKS cluster already has an Ocean controller installed.
    If the controller is already running on the cluster, the identifier is in use and can’t be assigned to another Ocean cluster.

  2. Confirm whether you're trying to enable Ocean Insights on an existing Ocean‑managed cluster.
    Ocean Insights is designed for unmanaged clusters.

    • If the cluster is already managed by Ocean, Insights can’t reuse the same identifier.

  3. Use a different cluster identifier if needed.
    Assign a unique controllerClusterID or remove conflicting configurations before trying again.

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Fix the “controllerClusterID already being used by another Ocean cluster” message in EKS