Manage load balancing

OBLB is an iptables-based software load balancing tool. You can configure OBLB for an OBProxy cluster to improve the load balancing capability of the cluster.

• If no OBLB service is configured for the OBProxy cluster, you can use the Add Load Balancer feature to add an OBLB service.
• If an OBLB service is configured for the OBProxy cluster, you can use the Modify Load Balancer feature to update the load balancing information.

Prerequisites

• Make sure that the user who logs in to the OCP console has the following permissions:

  • OBProxy Maintenance resource permissions.
  • Overview menu permissions.

• Before you add an OBLB service, you must deploy the OBLB tool in OAT. For more information, see Install and uninstall OBLB.

Procedure

1. Log in to the OCP console.

2. Click OBProxy to go to the OBProxy page.

3. In the cluster list, click the name of the OBProxy cluster that you want to operate to go to the Overview page of the cluster.

4. Hover the pointer over Actions in the right-side column of the Load Balancer section, and click Add Load Balancer in the menu that appears.

5. In the right-side panel, specify the information about the OBLB service.

   • OBLB Service Endpoint: You can select an OBLB service that is configured during the deployment of OCP, or click Add OBLB Service to create an OBLB service in the right-side panel.

     • OBLB Service Endpoint: the VIP address of the OBLB service.
     • OBLB Service Port: the port of the OBLB service. The default value is 9090.
     • Username and Password: the username and password of the OBLB service, which are used for authentication when you call the OBLB interface.

   • VIP: the specific VIP address of the OBLB service.

   • Access Port: the access port of the OBLB service. The default value is 2883.

   • Port Type: the type of the access port. Valid values: RPC and SQL.

   • Domain Name Configuration (Optional): the configuration information for mapping the VIP and port. The platform does not provide a mapping between the VIP and domain name. You must prepare a domain name resolution service.

   • Remarks (Optional): the supplementary description of the load balancing.

     Note

     SLB is applicable only in Apsara Stack. We recommend that you contact technical support for assistance.

Modify load balancing

1. Log in to the OCP console.

2. Click OBProxy to go to the OBProxy page.

3. In the cluster list, click the name of the OBProxy cluster that you want to modify, and go to the Overview page of the cluster.

4. Hover the pointer over Actions next to Load Balancer, and click Modify Load Balancer in the menu that appears.

5. In the right-side panel, click to edit the information about the domain name configuration. You can also click Delete in the Actions column to delete the configured VIP in the cluster.

   Notice

   After the VIP is deleted, it cannot be used to connect to the current OBProxy cluster. Proceed with caution.