The Autopsy: Diagnosing a "Murdered" Server

🧭 What You’ll Learn (Complete Breakdown)
✅ 1. The 9 Root Causes of 100% CPU Usage
We dissect the most common — and most dangerous — CPU killers, including:

Runaway loops and busy‑waiting
Regex catastrophic backtracking
Thread starvation
Garbage collection stalls
System call storms & lock contention
… and more.

✅ 2. Cache Catastrophes & How to Survive Them
A full tactical guide to handling:

Cache Penetration
Cache Breakdown / Stampede
Cache Avalanche / Crash

With real engineering strategies:

Bloom Filters to block invalid requests
Circuit Breakers to protect downstream systems
Fallback layers to avoid total system collapse

✅ 3. Linux Debugging & System Forensics
Learn how to trace failures like a production SRE using:

grep, awk, sed for log forensics
CPU profiling & process investigations
Understanding the Linux boot sequence step‑by‑step
Practical debugging patterns for real outages


🌋 Who This Video Is For

Backend engineers
SRE / DevOps
Systems engineers
Distributed systems learners
Anyone who wants to build resilient, crash‑proof systems


🎯
systems design, caching crash, cache penetration explained, cache avalanche, cache breakdown, thundering herd problem, 100% cpu usage reasons, linux troubleshooting, backend performance tuning, deadlock conditions, bloom filter guide, circuit breaker pattern, production debugging, linux boot process explained, server overload, microservices resilience patterns, distributed system failures, performance engineering, high load systems

🔖 Ask yourself
“Why Your Server Hits 100% CPU — Thundering Herd, Cache Crashes, and Deadlock Explained”

📌
#SystemDesign #BackendEngineering #DevOps #SRE #Linux #Caching #DistributedSystems #Microservices #PerformanceEngineering #LoadBalancing #HighAvailability #Programming #TechEducation #EngineeringExplained #ServerPerformance