Application Load Balancer vs Classic Load Balancer
Developers should use Application Load Balancer when building scalable web applications, APIs, or microservices on AWS that require intelligent traffic routing, SSL/TLS termination, or integration with serverless components meets developers should learn classic load balancer when maintaining or migrating legacy aws applications that were built using the ec2-classic network model, as it is specifically designed for that environment. Here's our take.
Application Load Balancer
Developers should use Application Load Balancer when building scalable web applications, APIs, or microservices on AWS that require intelligent traffic routing, SSL/TLS termination, or integration with serverless components
Application Load Balancer
Nice PickDevelopers should use Application Load Balancer when building scalable web applications, APIs, or microservices on AWS that require intelligent traffic routing, SSL/TLS termination, or integration with serverless components
Pros
- +It is particularly useful for applications with dynamic scaling needs, such as those using containers (ECS/EKS) or serverless functions (Lambda), where ALB can route requests based on content like URL paths or host headers
- +Related to: aws-ec2, aws-lambda
Cons
- -Specific tradeoffs depend on your use case
Classic Load Balancer
Developers should learn Classic Load Balancer when maintaining or migrating legacy AWS applications that were built using the EC2-Classic network model, as it is specifically designed for that environment
Pros
- +It is useful for simple load balancing needs where advanced features like host-based routing or WebSocket support are not required, but it is generally recommended to use Application Load Balancer or Network Load Balancer for new projects due to their enhanced capabilities and modern architecture
- +Related to: aws-elastic-load-balancing, application-load-balancer
Cons
- -Specific tradeoffs depend on your use case
The Verdict
Use Application Load Balancer if: You want it is particularly useful for applications with dynamic scaling needs, such as those using containers (ecs/eks) or serverless functions (lambda), where alb can route requests based on content like url paths or host headers and can live with specific tradeoffs depend on your use case.
Use Classic Load Balancer if: You prioritize it is useful for simple load balancing needs where advanced features like host-based routing or websocket support are not required, but it is generally recommended to use application load balancer or network load balancer for new projects due to their enhanced capabilities and modern architecture over what Application Load Balancer offers.
Developers should use Application Load Balancer when building scalable web applications, APIs, or microservices on AWS that require intelligent traffic routing, SSL/TLS termination, or integration with serverless components
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