Designing Highly Available, Cost Efficient Cloud Solutions
Developing Cloud Solutions
An introduction to the AWS components that help us develop highly available, cost-efficient solutions.
- Understand the core AWS services, uses, and basic architecture best practices
- Identify and recognize cloud architecture considerations, such as fundamental components and effective designs
Elasticity and Scalability
Regions and AZ's
Amazon Elastic Load Balancer
Amazon Simple Queue Service
Amazon Elastic IP Addresses
Amazon Auto Scaling
Identify the appropriate techniques to code a cloud solution
Recognize and implement secure procedures for optimum cloud deployment and maintenance
Using Amazon SQS
Using Amazon SNS
Using Amazon SWF
Using Cross Origin Resources (CORS)
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Now, Amazon's Simple Queue Service, or SQS, is a reliable messaging queue service that is fully managed. Messages are stored redundantly in Simple Queue Service across multiple servers and availability zones to ensure delivery. Simple Queue Service can handle an unlimited number of messages at any given time. The order is not guaranteed with Simple Queue Service, and a message can be retrieved more than once from a queue, due to the distributed nature of the service. You can place sequencing information in each message so you can reorder the messages upon receipt if you do need to pull messages down in order. You can set a message visibility window of up to 12 hours to ensure messages are consumed. Messages can be stored for between one minute and two weeks. The default retention time is four days. You can delete all the messages in a Simple Queue Service queue using the purge queue action. When you purge a queue, all the messages previously sent to the queue will be deleted. So you should consider using Amazon's Simple Queue Service when you have separate components of a system or different systems altogether that need to interact with one another. You can also use the service to offload requests from primary services, which lets those primary services perform the job that they were intended to perform. With CloudWatch, you can use Simple Queue Service to trigger Auto Scaling based on the number of messages in your queues.
About the Author
Head of Content
Andrew is an AWS certified professional who is passionate about helping others learn how to use and gain benefit from AWS technologies. Andrew has worked for AWS and for AWS technology partners Ooyala and Adobe. His favorite Amazon leadership principle is "Customer Obsession" as everything AWS starts with the customer. Passions around work are cycling and surfing, and having a laugh about the lessons learnt trying to launch two daughters and a few start ups.