Distributed Services with Go

Three Load-Balancing Strategies

Three strategies can be used for solving the discovery and load balancing problem:

• Server proxying—your client sends its requests to a load balancer that knows the servers (either by querying a service registry or by being the service registry) and proxies the requests to your back-end services.

• External load balancing—your client queries an external load-balancing service that knows the servers and tells the client which server to send the RPC.

• Client-side balancing—your client queries a service registry to learn about the servers, picks the server to send its RPC, and sends its RPC directly to the server.

Using a server proxy is the most commonly used discovery and load-balancing pattern. Most servers don’t ...