Module 3: Orchestration & Airflow (The Robot Conductor)

📚 Module 3: Orchestration & Airflow

Course ID: DE-703
Subject: The Robot Conductor

You don’t run a script once. You run it every day at 3 AM. If it fails, it should tell you. We use Orchestration (like Apache Airflow) for this.

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🏗️ Step 1: The DAG (The “Flowchart”)

In Airflow, we define our pipeline as a DAG (Directed Acyclic Graph).

🧩 The Analogy: The Subway System

Each Task is a “Station”. You can’t reach Station 2 (Cleaning) unless you successfully pass Station 1 (Download). If the train gets stuck, the Conductor (Airflow) tries again automatically.

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🥅 Module 3 Review

1. Orchestration: Managing when and how pipelines run.
2. Task: A single step.
3. DAG: The flowchart connecting tasks.
4. Airflow: The robot conductor handling retries.

:::tip Slow Learner Note Orchestration is the difference between a “Script” and a “System” that runs while you sleep! :::