Ujjawal

Full Stack Dev ⚡ Building MVPs, SaaS & apps fast for founders & startups | From concept → code → launch. Building @weboreel

[email protected]

[Puneet Patwari @system_monarch]

LOAD BALANCING: Day 1/25

Your load balancer is lying to you.

It says traffic is "balanced." What it really means is: requests are being distributed. Whether they're distributed well is a completely different question.

I've seen a system with 4 servers where Server 3 was at 95% CPU while Server 1 sat at 12%. The load balancer said everything was fine.

A load balancer doesn't know what's happening inside your servers. It doesn't know one request takes 2ms and the next takes 12 seconds.

Your choice of algorithm, layer, and health check strategy is the difference between actual balance and the illusion of it.

Let me break it down. 🧵Your load balancer is lying to you.

[Ujjawal @endeavourmonk]

@mynameisyahia Congratulations man 🎉, really nice product

[Ujjawal @endeavourmonk]

Well-played: I checked out my first song, top listens, and all-time hits since my first day on Spotify, 12/22/21. Find yours at Your Party of The Year(s)!
https://t.co/vMim2p6xEL

[HackerRank @hackerrank]

The role of a developer has changed. You're not just writing code, you're orchestrating agents.

Introducing HackerRank Orchestrate, a 24-hour hackathon to design, build, and ship an AI agent that solves real-world problems.

May 1 - 2 | Virtual
Registrations close April 30, 8 PM IST

Think you've got what it takes?

Register now: https://t.co/CnnGh8bERh

[Ujjawal @endeavourmonk]

@ajay_2512x Can you send

[Claude @claudeai]

Introducing Claude Opus 4.7, our most capable Opus model yet.

It handles long-running tasks with more rigor, follows instructions more precisely, and verifies its own outputs before reporting back.

You can hand off your hardest work with less supervision.

[Ujjawal @endeavourmonk]

@erfnbshiri Top, looks clean and minimal

[Ujjawal @endeavourmonk]

Composite primary keys = uniqueness through combination. Use them when one column isn’t enough to identify a row, like linking tables (student_id + course_id).

[SumitM @SumitM_X]

Why do we need Composite primary keys ?

[Ujjawal @endeavourmonk]

Go checkout guys

[Alex Xu @alexxubyte]

All 7 ByteByteGo ebooks, FREE for a limited time. Link at the end.

- System Design Interview Vol. 1
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Whether you’re preparing for interviews or looking to deepen your architecture knowledge, this is a great opportunity.

Offer ends May 1.

Please help spread the word.

Check it out now at: https://t.co/O1nCvdO3P0

[Ujjawal @endeavourmonk]

WebSockets keep connections open, consume resources, and add complexity. overkill for simple requests, harder to scale, cache, secure, and debug.

HTTP is lightweight and stateless. WebSockets shine only when truly need real-time, persistent connections.

[Abhishek Singh @0xlelouch_]

If WebSockets enable real-time bidirectional communication, why not use WebSockets for all client-server communication instead of HTTP?

[Ujjawal @endeavourmonk]

@kirat_tw Know the backend overview working almost and very less frontend context

[Ujjawal @endeavourmonk]

Cold starts, execution time caps, vendor lockin, and cost at scale can bite. Long running jobs, heavy compute, low-latency apps, or full control needs still favor servers.

[Abhishek Singh @0xlelouch_]

If serverless (Lambda, Cloud Functions) eliminates infrastructure management and auto-scales, why run any servers at all?

[Ujjawal @endeavourmonk]

@devlprnitish plz remove the red color 🥸

[Ujjawal @endeavourmonk]

This is the difference between a demo and production code.

How do you handle cache fallbacks?

Stack I used:

- Node.js
- Redis (@upstash )
- Postgres
- Drizzle ORM

#backend #redis #nodejs

[Ujjawal @endeavourmonk]

Built a leaderboard with Redis Sorted Sets today ⚡

But the important part wasn’t Redis.
It was the fallback strategy.

If Redis cache misses:
- fetch from DB
- rebuild rankings
- seed Redis again

So the system never breaks.

Fast when cached.
Reliable when not.

[Ujjawal @endeavourmonk]

@sadkatwt It’s not about the language, it’s about the nature of tasks, distributed systems, load balancing, caching, and infrastructure.
Plenty of massive platforms use Node.js successfully, the bottleneck is design, not Node

[Ujjawal @endeavourmonk]

@xoaanya First the developer's 💔 will break

[Ujjawal @endeavourmonk]

@sadkatwt It’s not about the language, it’s about the nature of tasks, distributed systems, load balancing, caching, and infrastructure.
Plenty of massive platforms use Node.js successfully, the bottleneck is design, not Node

[Ujjawal @endeavourmonk]

Finally saw Dhurandhar 2, and man it was worth it

What an amazing movie 🍿🎥

#Dhurandhar2‌ #Dhurandhar2‌TheRevenge #WeekendVision