Which load balancing policy is NOT supported in OCI?

The load balancing policy that is not supported in Oracle Cloud Infrastructure (OCI) is circular rotation. In the context of load balancing, circular rotation typically refers to distributing requests in a rotating manner across the available backend servers, which is a method that fundamentally differs from the policies that OCI supports.

OCI supports several effective load balancing policies that enhance the distribution of traffic and help optimize resource use:

• Weighted round robin, for instance, allows traffic to be distributed based on predefined weights assigned to each backend server, enabling optimal use of resources based on their capabilities.

• Least connections directs traffic to the server with the fewest active connections, ensuring that no single server becomes overwhelmed, promoting a more balanced load.

• IP hash utilizes the client’s IP address to consistently route the requests to the same backend server, which is useful for session persistence and maintaining state.

These supported policies focus on efficiency, resource management, and maintaining service quality under varying traffic loads. Circular rotation, while an intuitive method of distributing traffic, does not fit within the formalized and strategic load balancing options provided by OCI.