Clustering is a way to group the compute resources physically. The nearest the better improving the communications performance and lowering jitter. Clusters can be tightly or loosely coupled and have a master node that performs all the orchestration activities of the compute nodes. Every cluster in AWS is a single Availability Zones (AZ) concept. To gain resilience, it can use specialized persistence services such as EFS, EBS, and Amazon S3.
There are two main groups of clusters in AWS, each one with a specific purpose:
- Cluster HPC: This cluster is tightly coupled, and the network performance is a major concern. In this model, we use higher throughput instances, placement groups, jumbo frames, and single AZ compute nodes, and they need strong orchestration mechanisms. Examples of these technologies are media transcoding services and fraud risk analysis:
- Distributed...