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[AWS] Classic Load Balancer VS Application Load Balancer

[AWS] Classic Load Balancer VS Application Load Balancer

URL : https://docs.aws.amazon.com/elasticloadbalancing/latest/userguide/what-is-load-balancing.html?icmpid=docs_elbv2_console#elb-features

 

ELB 설정을 하게 되면 다음 두가지를 선택하도록 되어 있다.
어떤 것을 선택해야 할지 의문을 갖게 되는… ㅋ

아래 내용을 참고 하시면 되겠다…

웹(HTTP,HTTPS) 의 경우는 새로 나온 application load balancer 를 사용 하는게 더 쉽게 느껴지는 듯.

 

Features of Elastic Load Balancing

Elastic Load Balancing supports two types of load balancers: Application Load Balancers and Classic Load Balancers. Choose the load balancer type that meets your needs.

Feature Classic Load Balancer Application Load Balancer
Protocols HTTP, HTTPS, TCP, SSL HTTP, HTTPS
Platforms EC2-Classic, EC2-VPC EC2-VPC
Sticky sessions (cookies) load balancer generated
Idle connection timeout
Connection draining
Cross-zone load balancing † Always enabled
Health checks † † Improved
CloudWatch metrics Improved
Access logs Improved
Host-based routing
Path-based routing
Route to multiple ports on a single instance
HTTP/2 support
Websockets support
Load balancer deletion protection

† Cross-zone load balancing is always enabled for an Application Load Balancer. For a Classic Load Balancer, it is disabled by default, but can be enabled and disabled as needed.

† † For an Application Load Balancer, you can specify the HTTP codes that indicate a successful health check response. An Application Load Balancer returns improved information about the cause of health check failures.

For more information about Application Load Balancers, see the Application Load Balancer Guide. For more information about Classic Load Balancers, see the Classic Load Balancer Guide.

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