You can deploy ESM for Fusion on one or more nodes, depending on the anticipated workload, and whether high availability deployment is required. The supported methods of deployment are:
The single-node deployment method allows you to deploy all of the ESM for Fusion components on a single node. This method of deployment is suitable only for small workloads and where you do not need high availability. You can use the provided scripts, which prepare your environment, install the CDF, and deploy ESM for Fusion.
For larger workloads, we recommend deploying ESM for Fusion in a multi-node cluster setup. The multi-node deployment method provides load balancing across several worker nodes and is scalable to handle large workloads. You can add multiple master nodes and worker nodes to scale. A multi-node deployment with three master and three worker nodes can be configured for HA support.
NOTE:Although, you can add worker nodes even after the installation, you can add master nodes only during the installation. Plan your deployment carefully before you start the installation process.
For high availability deployment, you must set up a minimum of three master and three worker nodes, so that even in cases where two nodes are unavailable, the third node is still available. When only two master nodes are used, and the primary master node is offline for maintenance or upgrade, only a single master node remains available, which creates a single point of failure. If the available single master node fails, the cluster stops and cluster orchestration will not be possible until the master is back online.
NOTE:Although, you can add worker nodes even after the installation, you can add master nodes only during the installation. Plan your deployment carefully before you start the installation process.