Creating a Load Balanced Cluster


In this scheme, load balancers manage incoming requests one by one, rotating them between the servers added to a cluster (a round-robin method).
Our load balancers are based on Layer 4 load balancing which means that requests are distributed at the transport layer, such as TCP/UDP transport protocols. To add an LB cluster:

  1. Go to your Control Panel's Load Balancers menu.
  2. Click the Add a New Balancer button.
  3. On the page that follows, fill in the form that appears:

    Cluster Configuration

    • Port - specify the port for this load balancer to run on (e.g. 9090, 8080, 9008 etc.)

    To add multiple load balancer ports, click the "+" button next to the first port.

    Load Balancer Instance

    • Label – give a name to your load balancer instance.
    • Hostname – specify a host name that will identify your load balancer.
    • Hypervisor zone – choose a hypervisor zone.
    • Hypervisor – select a hypervisor that will be enabled for the cluster.
    • Network zone – choose a network zone for this load balancer.
    • Port Speed – use the slider to set a port speed or tick the Unlimited box if required.

    Load Balancer Type

    • Choose the Cluster option and click Next.

    Cluster Nodes
    This is where you add and configure the nodes in this load balancing cluster. A node is a combination of a VM and an IP address.

    • Select a virtual machine from the drop-down box and click the Add Node button.
     PLEASE NOTE that the only VMs you can add to a cluster are those which are based on the selected hypervisor/hypervisor zone, have an IP in the defined network zone and are located in the same IP range.

  4. Click Save.