Load Balancer Pools

A Load Balancer evenly distributes requests across Web servers in what is commonly referred to as a "Server Farm" or, as in our system, a "Server Pool". When an HTTP request comes in, the Load Balancer looks at the load on each server before determining which server to send the request to, helping to ensure availability of the server and protect against Denial of Service attacks.

Notice: Load balanced bandwidth incurs an additional cost.

 Methods of Load Balancing

The Load Balancer currently uses the Round Robin and Least Connections methods of load balancing.
  • Round Robin mode passes each new connection request to the next server in line, eventually distributing connections evenly across an array of machines.
  • Least Connections passes a new connection to the pool member or node that has the least number of active connections.

To access the Load Balancer screen:

  1. Sign in to the Client Portal.
  2. Open the Manage mega menu.
  3. Click Load Balancer under the Combined Functions section.
  4. Select one of your existing nodes in order to manage Pools.

Use the Search field to filter out your Load Balancer Pools. There is no need for a "Submit" or "Go" button, the search begins when you type your first character.

Create a Pool

  1. Under the Pools tab click on the Create a Pool icon. Create A Pool Icon
  2. Note that load balanced bandwidth incurs additional cost, click OK to confirm the pool creation
  3. Enter Pool Name. Pool Name MUST start with a letter, followed by a letter, number, period, hyphen, or underscore.
  4. Enter Port Number in the appropriate field. You can find a list of commonly used port numbers by clicking here.
  5. Choose a Protocol type from a drop-down menu:

    • TCP. A network protocol used by a great many Internet applications, particularly Web pages.
    • SCTP. A network protocol that is a hybrid of sorts, performing functions in ways similar to both TCP and UDP.
    • UDP. A network protocol that bypasses the traditional error checking of protocols based on the assumption that the service will be completed within the application doing the communicating, commonly used for VoIP, Streaming media, and for online games.
  6. Choose a Balance Method. From a drop-down menu choose Round Robin or Least Connections. See the note above for more information on these two methods.
  7. Click on the Add IP icon. You may add:

    • Private IPs of your bare metal servers or VMs by clicking on Bare Metal Server or VM.
    • External IPs (not a VM). External IPs do not reside in your Cloud organization.

     Add as much IPs as necessary

    You may delete an IP by clicking on the Trash Can icon.
  8. Optionally, enable Health Checks for this pool.
  9. Click Save Pool.

Edit Pool

  1. Click on a Pool name to open its details.
  2. Click on the Edit Pool link to make modifications.
  3. When you are finished making modifications, click Save Pool.

Delete Pool

If you wish to delete a Load Balancer Pool:

  1. Click the Delete Pool link in the row of the pool you wish to delete.    Delete Pool
  2. Confirm your choice by clicking Delete this Pool.

Health Checks

To manage your health checks:

  1. Sign in to the Client Portal.
  2. Open the Manage mega menu.
  3. Click Load Balancer under the Combined Functions section.
  4. Click on the Manage Health Checks tab.