aaajit / System-Designs

This repo includes system design concepts, topics, AWS Services, capacity planning etc.

Introduction

This repo contains the various system design components info, questions and solutions.

• ⭐ System Estimation Tips
• Key Components of Distributed Systems

System Design - Tech Stack

API Tech Options (or CDN)
In-Memory Cache/DBs
Message brokers
Search Engines
MicroServices - Service Registry & Discovery
Cluster Coordination Service & Config store
Batch Processing
Stream Processing
Databases
Distributed Storage Services (Files, Images etc.)
Monitoring Services

HLD - Design Problems

Problem	Main Components
⭐ Zomoto HLD Design	Kafka, RabbitMQ, Elastic Search, Redis, MongoDB, Apache Spark
⭐ Uber Driver Allocation	Kafka, Elastic Search
⭐ AWS - Design a system that scales to a million of users on AWS	Amazon S3, Amazon Cloudfront, Redis, Amazon Load Balancer, Amazon CloudWatch
⭐ Personalization at Spotify using Casandra	Casandra, Kafka, HDFS, Apache Storm
⭐ Rate Limiting in Distributed Systems	Redis
Twitter - Hit Counter	Casandra, Redis, Apache Zookeeper,
AWS - Design Multi-Region Active-Active Architecture On AWS	AWS Global Architecture - Region, AZ, Point-2-Point, Amazon Aurora
Logging Solution in Distributed Systems	Kafka, Elastic Search, ELK
Search - Flight Booking	Kafka, Elastic Search, Casandra
URL Shortening Service	Redis
Dropbox Design
Instagram Design	Casandra, AWS Global Architecture - Region, AZ, Point-2-Point, Amazon S3, Amazon Cloudfront, Redis, Amazon Load Balancer,
Sales Rank By Category	Apache Spark
Servers Health System Design
YouTube Video Streaming
How Uber Manages a Million Writes Per Second Using Mesos and Cassandra Across Multiple Datacenters?	Casandra, Apache Marathon & Mesos
AWS - Dropbox Saves Millions by Building a Scalable Metadata Store (for AuditLog Data) on Amazon DynamoDB and Amazon S3	Amazon DynamoDB, Amazon S3
AWS - Upload Image using Amazon S3 and Lambda	AWS Lambda, Amazon S3
Twillo Send Message API (business customers, high throughput)	Kafka, Redis, Casandra
AWS - Send-SMS-API design (App Internal Clients, Multiple SMS-Providers, AutoScaling)	Amazon SQS, Auto Scaling, Redis, Amazon DynamoDB, Amazon Load Balancer, Amazon WAF
AWS - Deploy WordPress Site with Amazon Cloudfront & S3	Amazon S3, Amazon Cloudfront

Programming & OOP Design & Problems (LLD)

• ⭐ OOP Design
• ⭐ SOLID Principles
• ⭐ Design Tips & Techniques
• ⭐ Design Patterns
• Design Problems
  • Chess Game
  • Parking Lot
  • Snack & Ladder Game
  • Book My Show
  • Car Rental System
  • Vendor Machine
  • Hotel Booking System
  • Insurance Agent Flow

Programming Languages

• ⭐ GoLang
• Spring Boot & Microservices
• Java
• Hibernate
• JavaScript
• TypeScript
• Angular8

API Dev, Documentation

• ⭐ Swagger
• Open API Spec

Other Services

• Monitoring
• ⭐ Open Source Contributions
• Apache Marathon & Mesos
• Apache Yarn
• Apache Web Server
• Testing
• System Design Tips

Source(s) and further reading

• System Design Primer
• Grokking the System Design
• System Design by Gaurav Sen
• Benchmarking Apache Kafka, Apache Pulsar, and RabbitMQ: Which is the Fastest?
• System Design - Interview Questions