---
title: "Discussion on \"Anatomy of a fingerprint: how log0 turns 115,489 log lines into one incident\n\" | Hashnode"
description: "Discussion on \"Anatomy of a fingerprint: how log0 turns 115,489 log lines into one incident\n\". How log0 deduplicates a flood of errors into one incident with a deterministic SHA-256 fingerprint, no machine learning, O(1) per event."
url: "https://hashnode.com/posts/how-log0-deduplicates-logs-into-incidents/6a5b709f8afadba66ecc0de3"
---

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# [Anatomy of a fingerprint: how log0 turns 115,489 log lines into one incident](https://engineeringwithashmit.hashnode.dev/how-log0-deduplicates-logs-into-incidents?utm_source=hashnode&utm_medium=feed)

How log0 deduplicates a flood of errors into one incident with a deterministic SHA-256 fingerprint, no machine learning, O(1) per event.

Jul 18 · 9 min read · engineeringwithashmit.hashnode.dev  
Updated Jul 28  
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-   [#system-design](https://hashnode.com/tag/system-design)
-   [#backend](https://hashnode.com/tag/backend)
-   [#java](https://hashnode.com/tag/java)
-   [#observability](https://hashnode.com/tag/observability)
-   [#incident-management](https://hashnode.com/tag/incident-management)

## Written by

[Ashmit JaiSarita Gupta](https://hashnode.com/@ashmitjsg)

@ashmitjsg · Noida, India

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

Web Development | Quantum Computing | Machine Learning | Tech Community

Software Development Engineer working on scalable backend systems and developer platforms, with experience in full-stack and quantum computing software development. Open-source contributor and Google Summer of Code mentor. Interested in system design, distributed systems, and quantum computing. I write to simplify System Design, real-world software architecture, and open-source for early-career engineers.

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