Wrote my first blog a on Amazon’s DynamoDB! It dives deep into its architecture and design. Would love for you to check it out and drop a review on how I can improve my future blogs.

Balloons.

SELECT * FROM users WHERE username = 'admin' AND password = '' OR '1'='1';. Example of a query a hacker might use to gain access.

SQL Injection - it happens when you directly join user input into a database query, allowing attackers to insert their own SQL and access your data. Always validate and sanitize inputs before sending them to the database.

Storage Compute Separation (SCS) means storage and compute are decoupled. Storage sits in cloud services (like S3), while compute runs separately. It allows independent scaling and cost optimization but can add complexity and network latency.

SQL vs NoSQL SQL is great for vertical scaling and is ideal if you need your system to be highly consistent. NoSQL is designed for horizontal scaling through sharding and is a good choice if you need your system to be highly available and scalable.

You guys must have come across terms like x64 and ARM64. Let me explain what these are: they are basically the CPU architectures of your system that the processor uses to run programs. They determine how software is compiled and how it will run on a particular device.

300 followers, thank you so much guys

If there's already an existing service, but you want to build something similar, just make it simpler and more user friendly for your users.

Atlassian improved service performance by adopting the sidecar pattern. Instead of clients calling services directly, they talk to a local sidecar (via HTTP). The sidecar handles caching, retries, and all communication with the backend, leading to major latency drops

"distributed systems are just like humans ".~ Arpit bhayani.

Kafka stands out from other message queues due to its high throughput and scalability-focused design. It stores data on disk for fault tolerance and uses a pull-based model, letting consumers read messages at their own pace but it also comes with a complex implementation.

When you enter an URL, the domain is first resolved into an IP address via DNS (the internet’s phonebook). Once the IP is found, your browser establishes a TCP/HTTPS connection, sends an HTTP request to the server, and finally fetches the webpage content you see.

RT @bit2swaz: I built CodeCompass: an AI tool that analyzes your public GitHub repos to find your skill gaps. The MVP is live! It finds ha….

Recently many websites (like Tea or Ai Fiesta) have been hacked. The common factor? They used BaaS instead of creating their own server. With BaaS, there’s no backend the client talks directly to the database, so security depends entirely on correct rule configuration.

RT @abhraneeldhar: I fixed the only problem with Readme files

Companies use canary apps to simulate real customer behavior and monitor availability in production. These apps continuously perform actions like logging in,searching, or checking out, then report availability and latency stats helping detect issues before customers are impacted.

What are you learning/building twins ?

SQL is grounded in Relational Algebra (RA). A query first gets translated into RA expressions, then optimized using RA laws (like join reordering & selection pushdown). Finally, it’s converted into a physical plan with concrete algorithms (hash join, index scan, etc.).

RT @V9vek: 🔴Youtube System Design mapped out. No medium article because I don't like @Medium . Do read and ask dou….