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Managed Airflow (MWAA) Basics

1. Introduction

Managed Workflows for Apache Airflow (MWAA) is a fully managed service that makes it easy to orchestrate data workflows in AWS. It is designed to simplify the deployment, scaling, and management of Apache Airflow.

2. Key Concepts

2.1 What is Apache Airflow?

Apache Airflow is an open-source platform to programmatically author, schedule, and monitor workflows. It allows users to define workflows as Directed Acyclic Graphs (DAGs).

2.2 What is MWAA?

MWAA is the AWS service offering that allows users to run Airflow without the overhead of managing the underlying infrastructure.

2.3 Key Components

  • DAGs: Define your workflow.
  • Operators: The building blocks for tasks in a DAG.
  • Task Instances: The running of a task in a DAG.
  • Scheduler: Manages the scheduling of tasks.
  • Web Server: Provides a user interface to monitor and manage workflows.

3. Setting Up MWAA

3.1 Prerequisites

  • An AWS account.
  • A basic understanding of Python and Apache Airflow.
  • IAM permissions to create MWAA environments.

3.2 Step-by-Step Setup

  1. Go to the AWS MWAA Console.
  2. Click on Create environment.
  3. Fill in the required details (name, execution role, etc.).
  4. Configure the network settings (VPC, subnets, security groups).
  5. Set the Airflow version and logging options.
  6. Click Create and wait for the environment to be provisioned.
Note: Ensure that your security group allows traffic to the Airflow web server port (default: 8080).

4. Best Practices

  • Use version control for your DAGs to track changes.
  • Implement logging and monitoring for better debugging.
  • Break down large workflows into smaller, manageable tasks.
  • Optimize task dependencies to reduce bottlenecks.

5. FAQ

What is the pricing model for MWAA?

MWAA pricing is based on the number of Airflow workers and the storage used for DAGs, logs, and plugins.

Can I use third-party plugins with MWAA?

Yes, you can include custom plugins by uploading them to your S3 bucket.

Is MWAA suitable for production workloads?

Yes, MWAA is designed to handle production workloads with high availability and scalability.