Scenarios 1 Distributing High-visit Traffic Using LB

Scenario Description

For services with high visits, corresponding forwarding policies can be set through LB to evenly distribute traffic to multiple backend hosts for processing.

Benefits

Stand-alone machines cannot support a large service access volume and high concurrency. Load balancing can distribute traffic load to multiple backend hosts, improving business reliability and effectively supporting large traffic and massive concurrency business.

Typical Applications

(Example) Large portal website and Mobile Cloud Market At the same time, users can enable the session persistence function to ensure that the same customer request is forwarded to the same backend host, improving the access efficiency. The backend ECSs can be deployed in different availability zones to achieve high availability of the backend hosts.

Scenarios 2 Distributing Traffic Flexibly for Tidal Services Using LB and AS

Description

Elastic load balance (ELB) and auto scaling (AS) are used for services with tidal resource requests. As business volume scales up or down, ECS instances automatically added or decreased by AS will be automatically added to or removed from the LB-based backend ECS group.

Benefits

LB instances will flexibly use ECS resources based on traffic distribution and health check policies, greatly improving the efficiency and reliability of resource use.

Typical Applications

In the large-scale promotion campaigns on e-commerce platforms such as Double 11, Double 12 and 618 Shopping Carnivals, visits grow rapidly in a short time, and the peak traffic only lasts for a few days or several hours. LB and AS can save IT cost to the maximum extent.

Scenarios 3 Eliminating Single Points of Failure Using LB

Description

For services with high reliability requirements, you can add multiple backend ECSs to the load balancer and deploy them in different availability zones.

Benefits

The load balancer timely detects and blocks faulty ECSs through health checks and forwards traffic to other running backend ECSs to ensure service continuity.

Typical Applications

It can be applied to official website, billing service and Web service.

Elastic Load Balancing

Applications