Arpit Bhayani

Principal Engineer II at Razorpay. Creator of DiceDB, Ex-staff Engg at GCP Memorystore & Dataproc, ex-Amazon Fast Data, ex-Director of Engg. SRE and Data Engineering at Unacademy. I spark engineering curiosity through my no-fluff engineering videos on YouTube and my courses.

Popular posts: 4
Total points: 738
HN comments: 392
Rank: #3,196 personal

Visit arpitbhayani.me → RSS feedOn Hacker News Nov 2025 – Apr 2026

Systems & Performance 2 Infrastructure & DevOps 2 AI & Machine Learning 2 Math & Algorithms 1 Databases & Data 1

Most points Most discussed Most cited Newest

Clock synchronization is a nightmare

2025232 points159 comments Systems & Performance details

Time seems simple. But we engineers lose sleep over something as basic as keeping clocks in sync. Here’s why…

Heartbeats in Distributed Systems

2025164 points48 comments Systems & Performance details

In distributed systems, one of the fundamental challenges is knowing whether a node or service is alive and functioning properly. Unlike monolithic applications, where everything runs in a single process, distributed systems span multiple machines, networks, and data centers. This becomes even glaring when the nodes…