High availability and fault-tolerance are essential features of any modern day application. It is necessary to distribute the load and to avoid single points of failure when it comes to application access.
AWS-provided Elastic Load Balancing (ELB) automatically distributes incoming traffic to different instances that are launched in different availability zones.
AWS Elastic Load Balancing provides the following three types of load balancer:
- Application Load Balancer
- Network Load Balancer
- Classic Load Balancer
In this chapter, we will focus on Application Load Balancer in detail with the use of a sample application. We will also see how Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud to achieve higher levels of fault-tolerance in the application. We will explore the following...