Apr 19 · 33 min read · TLDR: Spark executor OOMs are almost never caused by insufficient total cluster RAM — they are caused by misallocating memory across five distinct JVM regions while ignoring GC behavior and memoryOverhead. Master the UnifiedMemoryManager model, apply...
Join discussionApr 7 · 11 min read · AI memory leak detection is the process of identifying and fixing unintended, continuous memory consumption in AI systems. This prevents memory bloat, which can degrade agent performance, cause slowdowns, and lead to system instability, making it cru...
Join discussionMar 28 · 3 min read · The Hook: From Prototype to Production Wall "It’s just a proof of concept." Those are famous last words in backend engineering. The project started as a monolithic Laravel web application where all re
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Mar 9 · 7 min read · Our PostgreSQL cluster crossed 10TB sometime in late 2024. I remember because that was also the week our reporting service started returning HTTP 504s intermittently, and the on-call rotation became a lot less fun. Seven engineers on the team, one da...
Join discussionDec 18, 2025 · 7 min read · How we cut infrastructure costs by 71% while improving query performance, with lessons on sharding, caching, and AI-assisted optimization slug: scaling-mongodb-6-billion-documents-ovh Managing a database with billions of records isn't just about havi...
Join discussionOct 12, 2025 · 3 min read · Are you sure you have correct set of memory parameters 😕 Readers ... what is on-heap memory and off-heap memory ?Sir, on heap memory is controlled by JVM and off heap memory is controlled by OS. Good !!! You are correct but that's not it, let's dive...
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Aug 4, 2025 · 3 min read · Laravel LazyCollection and cursor() are game-changers for handling large datasets efficiently. Instead of consuming all memory upfront, these tools stream data line-by-line or record-by-record. For instance, using LazyCollection to parse a user activ...
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Jul 3, 2025 · 9 min read · 📌 Introduction Performance is key when building scalable Node.js applications. But with growing traffic and complex logic, response times can take a hit—especially when your app makes repeated database or API calls. This is where caching steps in—it...
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Jun 17, 2025 · 4 min read · The Problem Is Worse Than You Think As a consultant, I've seen my share of performance disasters. But I wanted to understand the true scope of the problem beyond my own client experiences. So I partnered with Claude AI to research documented cases fr...
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