---
title: "Discussion on \"One New Server Shouldn't Take Down Your Database\n\" | Hashnode"
description: "Discussion on \"One New Server Shouldn't Take Down Your Database\n\". Consistent hashing explained simply: why adding one server can crash your database, and how the hash ring and virtual nodes fix it. With diagrams."
url: "https://hashnode.com/posts/consistent-hashing-explained-simply/6a730b91b39665a1df5f728a"
---

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# [One New Server Shouldn't Take Down Your Database](https://twarangupta.hashnode.dev/consistent-hashing-explained-simply?utm_source=hashnode&utm_medium=feed)

Consistent hashing explained simply: why adding one server can crash your database, and how the hash ring and virtual nodes fix it. With diagrams.

Aug 5 · 5 min read · twarangupta.hashnode.dev  
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-   [#system-design](https://hashnode.com/tag/system-design)
-   [#backend](https://hashnode.com/tag/backend)
-   [#distributed-systems](https://hashnode.com/tag/distributed-systems)
-   [#scalability](https://hashnode.com/tag/scalability)
-   [#databases](https://hashnode.com/tag/databases)

## Written by

[Twaran Gupta](https://hashnode.com/@twarangupta)

@twarangupta · Delhi, India

  
[View profile](https://hashnode.com/@twarangupta)

I build things from scratch!

I build things which solve problems.

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