X-axis scaling: running multiple identical copies of an application behind a load balancer
Y-axis scaling: splitting the application with functional decomposition (a server for account info, another for catalog, etc.)
Z-axis scaling: each server runs an identical copy of the application (like X-asis) but each server is responsible for only a subset of the data - some other component of the system is responsible for routing each request to the appropriate server (Ex: sharding)
Y-axis scaling: splitting the application with functional decomposition (a server for account info, another for catalog, etc.)
Z-axis scaling: each server runs an identical copy of the application (like X-asis) but each server is responsible for only a subset of the data - some other component of the system is responsible for routing each request to the appropriate server (Ex: sharding)