SLB Service is designed for Aliyun flexible computing platform, regardless of the system architecture, system security and performance, expansion, compatibility design has fully considered the flexible computing platform cloud server usage characteristics and specific business scenarios, the user's cloud server without special settings that can be transparent access.
The Aliyun SLB Service can check the health status of cloud servers in the service pool, automatically isolate the abnormal state cloud server, thus solving the single point problem of single cloud server and improving the overall service capability of the application. In addition to the standard load balancing function, the SLB service also features TCP and HTTP anti-DDoS attacks, which enhances the protection of application servers.
Aliyun SLB Service is a supporting service for the multi-machine solution of cloud server, which needs to be used in conjunction with Cloud server.
SLB (load Balancing) service mainly has the following product characteristics:
• Transparent access
Provides 4-tier and 7-tier load balancing, both for Web servers and middleware servers, and for transparent access without changing configuration.
• Safe and stable
SLB is a distributed structure with high redundancy and reliability, and is integrated with anti-DDoS capabilities according to the load elasticity of the system.
• Health Check
SLB can perform health checks on RS in accordance with specified rules, and once health problems are identified, switch services quickly to ensure service availability.
• Session Retention
You can bind a user and a background server to the same session to ensure that the session is not interrupted. The 4-Layer load Balancing can also set the connection duration.
• Weight Forwarding
Currently support polling, minimum connection number forwarding method, can be based on the performance of the background cloud server set different forwarding weights, SLB will be based on the forwarding method, the request will be allocated according to the weight.
• Simple Configuration
Invoking the API or using the console can be open at any time, turn off load balancing, take effect immediately, and be flexible and simple.
• On-Demand billing
SLB according to your needs load balanced flow of the size of the charge, you only for your use of the load flow and pay.