Saga Pattern Explained 🚀 | How Big Systems Handle Distributed Transactions (System Design)

Ever wondered how systems handle transactions across multiple services without breaking? 🤯

In distributed systems, traditional ACID transactions don’t work well…
👉 That’s where the Saga Pattern comes in!

🔥 What You’ll Learn

👉 What is Saga Pattern
👉 Why distributed transactions are hard
👉 Local transactions vs global transactions
👉 Compensation (rollback) mechanism
👉 Choreography vs Orchestration
👉 Real-world examples
👉 Advantages & trade-offs

⚡ Why This Matters

Modern systems are:

✔ Distributed
✔ Scalable
✔ Microservice-based

👉 Saga Pattern helps maintain data consistency without global locks

💡 Real Interview Insight

Always say:

👉 “We can use Saga Pattern to manage distributed transactions using a sequence of local transactions with compensating actions.”

👉 “This ensures eventual consistency across microservices.”

🧠 Real-World Examples
Order → Payment → Inventory
Booking systems
E-commerce checkout flows
Ride-sharing workflows

🎯 Who Should Watch?
Backend Developers
System Design Interview Preparation
Engineers preparing for FAANG
Anyone building distributed systems

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