Category: How to: Enable External Load Balancer Mode for AWS Elastic Load Balancer and Google Load Balancer

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The External Load Balancer Mode is intended to work with networking environments where LVS load balancing is not supported.

LVS load balancing relies on “ip spoofing” to allow the nodes to respond directly to requests as if it were the Cluster Manager. In some network configurations these responses are blocked.

Set Up:

Configure an InterWorx Cluster by adding cluster nodes. Once cluster nodes have been added navigate to NodeWorx -> Clustering -> Setup page on the Cluster Manager. Set the “External LB Mode” radio button to “On” and click “Save”.

 

The virtual hosts on the cluster nodes will now listen to the ip address on the main network interface.

This will update existing virtual hosts on the cluster nodes to now listen on the primary network interface IP address rather than the loopback or tunnel device normally used for LVS-DR or LVS-TUN.

At this point, you will now configure the external load balancer. External load balancers tested with this setting include HAProxy, AWS Elastic Load Balancing, and Google Cloud Load Balancing. Configuring these services are outside the scope of this guide.

Apr 30, 2018, 12:37 pmBy: InterWorx
How to: Enable External Load Balancer Mode for AWS Elastic Load Balancer and Google Load Balancer
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