System-Design | Compile My Mind

Message Queue vs Publish-Subscribe: What Is the Difference?

10/15/26

An order is placed. Inventory must reserve stock, billing must create an invoice, analytics must record the sale, and an email must reach …

What Is Serverless Computing and How Does It Work?

10/11/26

A small photo-sharing application receives almost no traffic overnight. At lunchtime, a promotion sends thousands of people to it at once. …

serverless cloud cloud-architecture event-driven-architecture system-design

Message Queues Explained: How Asynchronous Systems Work

10/7/26

A customer clicks Place order. The payment succeeds, but generating the invoice takes 12 seconds and the email provider is having a bad …

message-queues system-design distributed-systems scalability software-architecture

Monolithic Architecture vs Microservices: How to Choose

10/4/26

A team has one application, one database, and one deployment pipeline. Releases are still manageable, but checkout changes keep colliding …

software-architecture microservices system-design distributed-systems scalability

Virtual Machines vs Containers: What Is the Difference?

9/23/26

A team has a small web service that works perfectly on one developer’s laptop. Now it needs to run in testing, production, and perhaps …

virtualization cloud infrastructure it-fundamentals system-design

What Is a Reverse Proxy and How Does It Work?

9/21/26

Your application works perfectly on port 8080. Then you try to put it on the public internet. Suddenly, the application needs a trusted TLS …

reverse-proxy http networking system-design web-servers

What Is Load Balancing and How Does It Work?

8/31/26

The promotion begins at noon. By 12:03, the store has three application servers running and customers are still seeing timeouts. Adding …

system-design networking scalability software-architecture infrastructure

Concurrency vs Parallelism: What Is the Difference?

8/20/26

A service feels slow, so the team gives it more workers. The request queue becomes shorter, but CPU usage stays almost unchanged. Someone …

concurrency parallelism system-design programming-fundamentals

What Is Cloud Computing? A Beginner's Guide

8/16/26

A product launch is three weeks away, and the application needs more capacity. In a traditional datacenter, that sentence can begin a chain …

cloud cloud-architecture infrastructure it-fundamentals system-design

Process vs Thread: What Is the Difference?

8/14/26

A web server becomes slow, so someone suggests adding more threads. Another person proposes splitting the work into separate processes. Both …

concurrency system-design scalability software-architecture

What Is Software Architecture? A Beginner's Guide

8/13/26

The first time many developers hear software architecture, they imagine an enormous diagram: dozens of boxes, arrows in every direction, and …

software-architecture system-design design-patterns scalability maintainability

Designing Event-Driven S3 PII Detection with Amazon Macie Custom Identifiers and Step Functions

7/29/26

This article guides you through designing an automated S3 workflow with Amazon Macie custom identifiers and Step Functions to detect and …

system-design pii-detection

System Design Caching: Cache-Aside, Expiration, and Invalidation

7/20/26

A cache is a copy. Every useful cache design must therefore answer a harder question than “What TTL should we use?”: How wrong may this copy …

caching system-design distributed-systems redis