Create Load Balancer 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). 
OnApp load balancers are based on Layer four 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 > Cloud > 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 hostname that will identify your load balancer.
    • Compute zone – choose a compute zone.
    • Compute resource – select a compute resource 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.
    • CPU Priority - set the load balancer's CPU priority.

    Load Balancer Type

    • 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 VS and an IP address.

    • Virtual Server - select a virtual server from the drop-down box and click the Add Node button.
    The only VSs you can add to a cluster are those which are based on the selected compute resource/compute zone, have an IP in the defined network zone and are located in the same IP range.

    Enabled anti-spoofing would prevent adding Windows-based virtual servers as nodes to the load balancer cluster. To disable anti-spoofing reboot windows-based nodes from Control Panel after they are added to the cluster.

  4. Click Save.