Hello, everyone!
This post will share with you the Elastic Load Balance.
Basic Concepts
Listener
You can create a listener and define the load balancing policy and forwarding rule.
The following are some concepts related to the load balancing policy and forwarding rule:
The listener configures the load balancing policy based on the protocol of the connection between the client and load balancer, the protocol of the connection between the load balancer and backend ECS, and the ports of the client and backend ECS. The load balancer supports HTTP and TCP protocols and can listen to ports 1 to 65535.
The following three types of forwarding rules are available:
· Round robin: Each connection request is distributed to the next ECS in sequence so that all requests are distributed evenly to all ECSs.
· Least connections: New connections are distributed to the ECS processing the least connections.
· Source IP address: The source IP address of the request sender is used as the HashKey to identify the ECS in the static fragment table.
You can choose an appropriate algorithm based on your requirement to distribute access traffic and improve load balancing capabilities.
The following types of sticky session modes are available:
· Source IP address: The source IP address of the request sender is used as the HashKey to identify the ECS in the static fragment table.
· HTTP cookie: The load balancer will generate a cookie after it receives a request from a client. All the subsequent requests with the cookie will be distributed to the same backend server for processing.
· App cookie: This method relies on backend applications. Backend applications will generate a cookie and all requests with the cookie will be distributed to the same backend server for processing.
You can choose an appropriate algorithm based on your requirement to distribute access traffic and improve load balancing capabilities.
Health Check
You can configure health checks to monitor the status of backend ECSs and ensure that the load balancer forwards requests only to ECSs that is running properly. After an abnormal ECS recovery, it will automatically continue to provide services. Health check protocols include TCP, HTTP, and HTTPS and PING.
Access and Use
The cloud platform provides a web-based service management platform, that is the ServiceCenter tenant portal.
The ServiceCenter tenant portal is provided for you to access and manage ELB.
The ServiceCenter tenant port enables you to manage your computing, storage, and other cloud resources. If you are a CloudOpera ServiceCenter resource administrator or have the ELB operation rights, you can directly log in to the ServiceCenter tenant portal and choose Elastic Load Balance under the Product or Console menu.
That's all, thanks!
