Cluster Deployment Options
To achieve high availability, you can cluster your API Gateway. You can cluster API Gateway nodes using one of the following cluster coordinators:
- Apache Ignite operates as an embedded server and scales seamlessly with each node of the API Gateway runtime.
- Terracotta Server Array (TSA) operates in an active-passive setup. Typically, two instances are sufficient.
The following image depicts the most popular choices in cluster deployment:

For more information about:
- High Availability Cluster, see Cluster Deployment.
- High Availability + Disaster Recovery, see High Availability and Disaster Recovery.
- High Availability + Fault Tolerance, see High Availability and Fault Tolerance.