¿Qué hace ELB cuando la instancia no pasa la verificación de estado?

What does ELB do when instance fails health check?

The default health checks for an Auto Scaling group are EC2 status checks only. If an instance fails these status checks, it is marked unhealthy and is terminated while Amazon EC2 Auto Scaling launches a new replacement instance.

Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/ .

1. On the navigation pane, under LOAD BALANCING, choose Load Balancers.
2. Select your load balancer.
3. On the Description tab, Status indicates how many instances are in service.
4. On the Instances tab, the Status column indicates the status of each instance.

Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/ .

1. On the navigation pane, under LOAD BALANCING, choose Target Groups.
2. Choose the name of the target group to open its details page.
3. On the Group details tab, in the Health check settings section, choose Edit.

The ELB Health Check is configured with a protocol and port number to call on the target instances. A healthy EC2 instance is one that issues a response to a health check call with a 200 response code. Healthy machines are given a balanced portion of the traffic being directed through the ELB.

Load balancers
Load balancers make your life easy while may add some bill: To discover the availability of your EC2 instances, a load balancer periodically pings, attempts connections, or sends requests to test the EC2 instances. These tests are called health checks.

Q: What happens when an EC2 instance that is being served traffic from an ELB becomes unhealthy? A: The ELB will stop serving traffic to it and divert its traffic to a healthy instance. E: The ELB will stop serving traffic to it and divert its traffic to a healthy instance, as this is all it can do.

To test network load balancing, connect a browser to the cluster IP address, for example: http://192.168.10.10. Refresh the screen multiple times. If the cluster is operating successfully, web pages from different machines in the cluster appear after each refresh.

1 Answer. To check the web load balancer, you can simply create two different web pages with the same filename on two servers. Then you browse the webpage with the public IP address that load balancer provided. When you see “This is server 1”, you are connecting to server 1, vice versa.

The port the load balancer uses when performing health checks on targets. The default is to use the port on which each target receives traffic from the load balancer. [HTTP/HTTPS health checks] The ping path that is the destination on the targets for health checks.

To associate a health check with an existing internal TCP/UDP load balancer, TCP proxy load balancer, SSL proxy load balancer, external HTTP(S) load balancer, or backend service-based network load balancer: Go to the Load balancing page in the Google Cloud Console. Click on a load balancer to view its details.

Check your device performance and health in Windows Security

1. In the search box on the taskbar, type Windows Security, and then select it from the results.
2. Select Device performance & health to view the Health report.

All instances in your Auto Scaling group start in the healthy state. Instances are assumed to be healthy unless Amazon EC2 Auto Scaling receives notification that they are unhealthy. This notification can come from one or more of the following sources: Amazon EC2, Elastic Load Balancing (ELB), or a custom health check.