Amazon SWF

Question 1

What is Amazon SWF

Answer 1

Amazon Simple Workflow Service (SWF) is a web service that makes it easy to coordinate work across distributed application components.

Amazon SWF is used for processing background jobs that have parallel or sequential steps.

Question 2

Amazon SWF UseCases :

Answer 2

Use Amazon SWF:

• if your app’s steps take more than 500 milliseconds to complete
• you need to track the state of processing, or
• you need to recover or retry if a task fails.

Including media processing, web application back-ends, business process workflows, and analytics pipelines.

Question 3

AWS SWF Recommendation

Answer 3

AWS recommends that for new applications customers consider AWS Step Functions instead of SWF.

Question 4

SWF Principles

Answer 4

• SWF has a completion time of up to 1 year for workflow executions.
• SWF uses a task-oriented API.
• SWF ensures a task is assigned once and never duplicated.
• SWF keeps track of all the tasks and events in an application.