ALB aws operations & benefits

[hieuhtr]

Application Load Balancer

http://docs.aws.amazon.com/elasticloadbalancing/latest/application/introduction.html

Benefits - Compare with Classic Load Balancer

• Support for path-based routing.

  • configure rules for your listener that forward requests based on the URL in the request.
  • structure your application as smaller services
  • route requests to the correct service based on the content of the URL.

• Support for routing requests to multiple services on a single EC2 instance by registering the instance using multiple ports.

• Support for containerized applications.

  • Amazon ECS can select an unused port when scheduling a task and register the task with a target group using this port.
  • make efficient use of your clusters.

• Support for monitoring the health of each service independently

  • health checks are defined at the target group level
  • CloudWatch metrics are reported at the target group level
  • Attaching a target group to an Auto Scaling group enables you to scale each service dynamically based on demand.

• Access logs contain additional information and are stored in compressed format.

• Improved load balancer performance.