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ulb
Classic Load Balancer CLB
Operation Guide
Service Node
Service node

Service Nodes

Adding service nodes

After the VServer listener is created, it is necessary to add service nodes to the VServer in order for the load balancer to officially provide services to the public.

Operating steps

Navigate to the VServer Management Page, click Service Nodes, and manage the service nodes.

  1. On the VServer Management-Service Nodes page, click Add Node.
  1. Make the following choices in the pop-up window.
ConfigurationDescription
Resource TypeThe resource type of the service node. Including cloud host, physical cloud host, container, hybrid cloud host, and managed Hadoop cluster.
Belonging VPCIf the service node type is a hybrid cloud host, select the hybrid cloud VPC that has already been connected to the current CLB’s VPC.
SubnetThe subnet the service node belongs to. All subnets or specified subnets can be selected.
Listening PortThe listening port of the service node. The service node port has the following restrictions: If the CLB is in the request proxy mode, the same backend service node can add different ports to implement the same IP and different service instances; if the mode is packet forwarding, the port of the backend service node must be consistent with the VServer listening port.
Optional ResourcesDisplay the current service node resources that can be added according to the selected information. If the resource type is hybrid cloud host, the private IP of the hybrid cloud host needs to be filled in.

When adding hybrid cloud (managed cloud) resources, the managed cloud VPC should be connected to the CLB’s VPC.

  1. In the list of optional resources, select the Checkbox of the resources to be added, and move it to the list of nodes to be added on the right.

Adding Cloud Hosts/Physical Cloud Hosts/Containers/Managed Hadoop Clusters, enter the port before selecting resources:

Adding hybrid cloud hosts:

  1. Click OK to complete node addition.

Deleting service nodes

Operating steps

Navigate to the VServer Management Page and click Service Nodes to manage service nodes.

Deleting a single service node

  1. Choose the service node that you want to delete and click on Delete on the right.

  2. A pop-up window displays the information of the selected service node, confirm if it is the service node you want to delete.

  3. Click OK to complete the deletion of the service node.

Batch delete service nodes

  1. Batch select the Checkbox on the left of the nodes to be deleted, click Delete on the top.

  1. A pop-up window will display the information of the selected service nodes, confirm if these are the service nodes you want to delete.

  2. Click Delete to complete the batch deletion.

Disabling service nodes

After the node is added, the default state is the service enable state.

When the service node needs to be maintained, you can stop the service node external service by disabling the service node, making the overall update and maintenance of the service smoother.

After disabling the service node, the existing long connections will not be disconnected.

Operational steps

Navigate to the VServer Management page, click Service Nodes, and manage the service nodes.

Disabling a single service node

  1. Choose the service node that you need to disable, click the Disable button.

  1. A pop-up window will display the information of the selected service nodes, confirm if these are the service nodes you want to disable.

  2. Click OK to disable the node.

Batch disable service nodes

  1. Batch select the Checkbox on the left of the nodes to be disabled, click Disable on the top.
VServerMessage forwarding mode service node configuration