Does SQS have Auto Scaling?

Does SQS have Auto Scaling?

There are three main parts to this configuration: An Auto Scaling group to manage EC2 instances for the purposes of processing messages from an SQS queue. A custom metric to send to Amazon CloudWatch that measures the number of messages in the queue per EC2 instance in the Auto Scaling group.

How do I set Auto Scaling in a group?

On the navigation bar at the top of the screen, choose the same AWS Region that you used when you created the launch configuration. Choose Create an Auto Scaling group. On the Choose launch template or configuration page, for Auto Scaling group name, enter a name for your Auto Scaling group.

What is the difference between ELB and ASG?

ELBs determine instance health via basic health check operations. Auto Scaling Group (ASG): A control mechanism that manages how many EC2 instances make up a pool. ASGs will create new EC2 instances based on configured pool sizes. They can also auto-scale up and auto-scale down the pool sizes based on load.

Does SQS guarantee delivery?

Q: Does Amazon SQS guarantee delivery of messages? Standard queues provide at-least-once delivery, which means that each message is delivered at least once. FIFO queues provide exactly-once processing, which means that each message is delivered once and remains available until a consumer processes it and deletes it.

What is Amazon ASG?

An Amazon EC2 Auto Scaling group (ASG) contains a collection of EC2 instances that share similar characteristics and are treated as a logical grouping for the purposes of fleet management and dynamic scaling.

What is ASG and launch config?

A launch configuration is an instance configuration template that an Auto Scaling group uses to launch EC2 instances. When you create a launch configuration, you specify information for the instances.

How do I add an EC2 instance to Auto Scaling group?

To attach an instance to a new Auto Scaling group On the navigation pane, under Instances, choose Instances, and then select an instance. Choose Actions, Instance settings, Attach to Auto Scaling Group. On the Attach to Auto Scaling group page, for Auto Scaling Group, enter a name for the group, and then choose Attach.

What is the difference between load balancer and Auto Scaling?

Auto Scaling is used for automatic scaling up and scaling down. Loadbalancer used to distribute the incoming traffic across multiple targets.

What is AWS target group?

A target group tells a load balancer where to direct traffic to : EC2 instances, fixed IP addresses; or AWS Lambda functions, amongst others. When creating a load balancer, you create one or more listeners and configure listener rules to direct the traffic to one target group.

What is an auto scaling group?

An Auto Scaling group to manage EC2 instances for the purposes of processing messages from an SQS queue. A custom metric to send to Amazon CloudWatch that measures the number of messages in the queue per EC2 instance in the Auto Scaling group.

How do I use SQS queue messages in an auto scaling group?

As you can read in the Scaling Based on Amazon SQS tutorial in the Auto Scaling documentation, you can use the number of messages stored in an SQS queue as an indicator of the amount of work that is waiting in line for eventual processing within an Auto Scaling Group comprised of a variable number of EC2 instances.

What is an EC2 auto scaling group?

An Auto Scaling group contains a collection of Amazon EC2 instances that are treated as a logical grouping for the purposes of automatic scaling and management. An Auto Scaling group also enables you to use Amazon EC2 Auto Scaling features such as health check replacements and scaling policies.

How do I get the running capacity of an auto scaling group?

Use the describe-auto-scaling-groups command to get the running capacity of the group, which is the number of instances in the InService lifecycle state. This command returns the instances of an Auto Scaling group along with their lifecycle state.