Developer Guide > Developer Guide > Codebeamer Architecture > Transitioning Between Cluster and Single Node Setups
Transitioning Between Cluster and Single Node Setups
The following three environment variables should be present in a cluster environment by all Codebeamer services, but not in a single environment.
• CB_CLUSTER_ENABLED=true
• CB_ping_testingEnabled=true
• CB_RMI_CACHE_HOSTNAME=<your-codebeamer-service-name>
Switching from Cluster to Single Node
1. Use the cluster example compose file to start a cluster environment.
2. Run docker compose down to stop the cluster environment.
3. Use the single example compose file to start the single environment.
For more information, see Start Codebeamer on a Single Node.
Switching from Single Node to Cluster
1. Use the single example compose file to start the single environment.
2. Run docker compose down to stop the single environment.
3. Use the cluster example compose file to start a cluster environment.
For more information, see Running a Codebeamer Cluster with Docker-Compose.
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