---
title: "Discussion on \"The Secret Life of fsync\" | Hashnode"
description: "Discussion on \"The Secret Life of fsync\". What kind of durability guarantees fsync system call provides in Linux? Let's find out."
url: "https://hashnode.com/posts/the-secret-life-of-fsync/64272b39a9a93eeb27f1aeee"
---

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# [The Secret Life of fsync](https://puzpuzpuz.dev/the-secret-life-of-fsync?utm_source=hashnode&utm_medium=feed)

What kind of durability guarantees fsync system call provides in Linux? Let's find out.

Mar 31, 2023 · 4 min read · puzpuzpuz.dev  
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-   [#databases](https://hashnode.com/tag/databases)
-   [#linux](https://hashnode.com/tag/linux)

## Written by

[Andrei Pechkurov](https://hashnode.com/@puzpuzpuz)

@puzpuzpuz

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

Top data race and segfault producer in the room.

Core database engineer at QuestDB. Distributed systems gazer. Node.js contributor. Occasional tech blogger and speaker.

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