3.34 AWS Placement Groups

AWS Placement Groups is a feature offered by Amazon Web Services (AWS) that allows users to place instances in a specific group within an Availability Zone. This feature is designed to help users optimize their applications for high-performance computing and low-latency networking.

Placement Groups can be used to launch instances in a cluster, which is a group of instances that are closely located to each other and connected through a high-bandwidth network. This helps to reduce the network latency between instances and improve the performance of applications that require high-speed data transfer.

There are three types of Placement Groups available in AWS:

Cluster Placement Group: This type of group is used for applications that require low-latency, high-bandwidth networking. Instances in a cluster placement group are placed in a single rack and are connected to each other through a 10 Gbps network.

Spread Placement Group: This type of group is used for applications that require high availability and can tolerate a small amount of network latency. Instances in a spread placement group are placed on different racks, which helps to reduce the risk of a single point of failure.

Partition Placement Group: This type of group is used for applications that require a large number of instances and can tolerate a higher amount of network latency. Instances in a partition placement group are spread across multiple partitions within an Availability Zone.

Overall, AWS Placement Groups provide users with a powerful tool to optimize their applications for high-performance computing and low-latency networking. By using Placement Groups, users can launch instances in a way that maximizes performance, availability, and reliability.