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Had created a Load balancer to added some EC2 instances to them and everything is working as expected. I cannot add a new availability zone to this load balancer. I need to add the new zone as an ec2 instance type that I want is not available in the zone that is already in the Load Balancer.

  • When i try to add it from the command line, the Load Balancer itself is not recognized.
  • From the UI, the edit instances on the load balancer is greyed out.

Any thoughts?

Thanks, Hemanth

Hemanth Sundareshan
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  • what kind of load balancer did you create? Application or Network? – gtosto Jan 12 '18 at 17:58
  • Can you share the command your using, region, AWS config file for CLI and screenshot of your console with information about your ELB? – Ele Jan 12 '18 at 18:28
  • @gtosto. Its a TCP Load Balancer. – Hemanth Sundareshan Jan 12 '18 at 19:50
  • This is the command I ran to add a zone to the lb:aws elb enable-availability-zones-for-load-balancer --load-balancer-name va-elb-app-01 --availability-zones us-east-1b --region us-east-1. The error i got was : An error occurred (LoadBalancerNotFound) when calling the EnableAvailabilityZonesForLoadBalancer operation: There is no ACTIVE Load Balancer named 'va-elb-app-01' – Hemanth Sundareshan Jan 12 '18 at 19:54
  • On the side note, this is a programming QA site. – Mike Doe Jan 12 '18 at 21:01

1 Answers1

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You cannot add or remove an Availability Zone from a Network Load Balancer (TCP Load Balancer) after it's been created. You are going to have to create a new one.

From the AWS official docs for Network Load Balancer:

You enable one or more Availability Zones for your load balancer when you create it. You cannot enable or disable Availability Zones for a Network Load Balancer after you create it.

justderb
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Viccari
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