Learn System Design Visually

What is system design and how it is used in interviews.

Requirements

2 chapters

Functional

Understanding functional requirements in system design.

4 min read

Non Functional

Non-functional requirements: scalability, reliability, and performance.

Capacity Estimation

5 chapters

Definition And Types

Learn what capacity estimation is and the different types.

Thumb Rules

Key thumb rules for back-of-envelope estimations.

Calculations

Worked examples of capacity calculations for real systems.

Infra

Infrastructure planning based on capacity estimates.

Calculationinfra

Combined walkthrough of calculations and infrastructure.

9 min read

Scaling

6 chapters

Introduction

Introduction to scaling concepts in distributed systems.

Vertical Scaling

Vertical scaling: scaling up a single machine.

4 min read

Horizontal Scaling

Horizontal scaling: distributing load across multiple machines.

Load Balancer For Hozintal Scaling

How load balancers enable horizontal scaling strategies.

Stateless And Stateful Service

Stateless vs stateful services and their scaling implications.

Auto Scaling

Auto scaling policies and strategies for dynamic workloads.

Architecture Patterns

5 chapters

System Architecture

Overview of common system architecture patterns.

Monolithic

Monolithic architecture: benefits, drawbacks, and use cases.

Microservices

Microservices architecture and decomposition strategies.

Event Driven

Event-driven architecture with asynchronous communication.

When To Use What

Decision framework for choosing the right architecture pattern.

Time And Clocks

4 chapters

Definition

Time in distributed systems: challenges and concepts.

Physical Clock

Physical clocks, clock skew, and synchronization protocols.

Logical Clock

Logical clocks: Lamport timestamps and vector clocks.

Summary

Summary and comparison of time synchronization approaches.

Theorems

3 chapters

Cap Theorem

CAP theorem: Consistency, Availability, Partition tolerance.

Pacelc Theorem

PACELC theorem extending CAP with latency trade-offs.

Consensus Fault Tolerance

Consensus algorithms and Byzantine fault tolerance.

9 min read

Data Consistency

9 chapters

Consistency

Consistency models in distributed databases.

Acid Properties

ACID properties: Atomicity, Consistency, Isolation, Durability.

Base Properties

BASE properties: Basically Available, Soft state, Eventual consistency.

Acid Vs Base

Comparing ACID and BASE consistency models.

Distributed Transactions

Distributed transactions: challenges and solutions.

Two Phase Commit

Two-phase commit protocol for distributed consistency.

Three Phase Commit

Three-phase commit protocol to avoid blocking in 2PC.

Saga Pattern

Saga pattern for managing long-running distributed transactions.

9 min read

Try Confirm Cancel Pattern

TCC pattern for flexible distributed transaction management.

Database Discussion

3 chapters

Relational Database

Relational databases: structure, use cases, and trade-offs.

Non Relarional Database

NoSQL databases: types, use cases, and when to use them.

Databases Tree

Visual taxonomy of database types and their relationships.

Database Internals And Indexing

1 chapters

All Concept