---
title: "Discussion on \"Building Scalable Systems: Caching, Rate Limiting and Observability\" | Hashnode"
description: "Discussion on \"Building Scalable Systems: Caching, Rate Limiting and Observability\". What happens when your application suddenly gets 1 million users?\nMaybe everything works perfectly when you have 100 users.\nThen your application becomes popular.\nSuddenly:\n100 users\n   ↓\n1,000 users"
url: "https://hashnode.com/posts/building-scalable-systems-caching-rate-limiting-and-observability/6a95bbfe79b0cf42be97967d"
---

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# [Building Scalable Systems: Caching, Rate Limiting and Observability](https://techwithsiddhant.hashnode.dev/building-scalable-systems-caching-rate-limiting-and-observability?utm_source=hashnode&utm_medium=feed)

What happens when your application suddenly gets 1 million users? Maybe everything works perfectly when you have 100 users. Then your application becomes popular. Suddenly: 100 users ↓ 1,000 users

Aug 31 · 19 min read · techwithsiddhant.hashnode.dev  
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## Written by

[Siddhant Gorte](https://hashnode.com/@siddhantgorte)

@siddhantgorte · Mumbai

  
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