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5 Comments

  1. Hi Shankar

    I have small doubt in auto scaling group.10 instance are there in auto scaling group 7 instances are heathy 3 instances unhealthy at the time auto scaling group will automatically spin up the servers
    Here I have questioni it will automatically spin up the server with data or not.if it is spin up the server with data ,how it will take the data ? And if not what is the reason for this

  2. Scenario:
    Currently, we have a single production server running on an EC2 instance. Since we are getting a lot of traffic, we would like to use the Autoscaling feature, but we are kind of new to this.

    Following is my understanding:
    – We create a custom AMI from our existing production server
    – Create a launch configuration from this AMI
    – Create an AutoScaling group with this launch configuration
    – Set conditions, if CPU usage is greater than 60%, add an instance, if less than 40% terminate 1 instance.
    – Add a load balancer to this autoscaling group
    – Now as far as I understood, to deploy new code to the auto scaling group, we have to create a new AMI with our updated application version and change the AMI used in the autoscaling group to this new one. Then terminate all the previous instances and create new ones from the updated AMI.

  3. Hi, I have doubt on functionality of EC2 ASG without loadbalacer attached. 1)As IP and DNS Names are different for all servers in ASG, How traffic will be shared/distribute among EC2 instances as i am not using any Loadbalancer, Then How it works?