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I'm running an ECS cluster with 4 ELB's. I have the annoying problem that my ELB's remove instances upon healtcheck failure. When my cluster rescale a task, it could be running on another instance so the instances need to be registered with the ELB, marked as OutOfService.

Is there a way to configure this behaviour?

Knots
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  • Is this [AWS troubleshooting document](http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/ts-elb-healthcheck.html#ts-elb-healthcheck-autoscaling) helpful? If not, I would recommend adding a note to your question indicating that you have tried its suggestions. – JasonAzze Jul 05 '16 at 12:28
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    I'm not using autoscaling, I've just 3 instances manually added to the ELB's. – Knots Jul 05 '16 at 12:34
  • *"my ELB's remove instances upon healtcheck failure"* Please be more specific, here. What exactly does "remove" mean? Remove from what? From the ELB? From ECS? From existence? – Michael - sqlbot Jul 05 '16 at 12:55
  • Go to EC2 dashboard, select Load Balancers. Select loadbalance from list. Go to Instances tab. You see a list of instances with status field OutOfService or InService. From this list, they get magically removed. – Knots Jul 05 '16 at 13:27

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