---
title: "Discussion on \"Cancelled by a Sibling: How Failure Travels Through the Coroutine Job Tree\" | Hashnode"
description: "Discussion on \"Cancelled by a Sibling: How Failure Travels Through the Coroutine Job Tree\". A field guide to Job hierarchies, why SupervisorJob exists, and the supervisorScope mistakes that quietly bring the bug back."
url: "https://hashnode.com/posts/cancelled-by-a-sibling-how-failure-travels-through-the-coroutine-job-tree/6af4a6e5659bd4c3cfc14994"
---

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# [Cancelled by a Sibling: How Failure Travels Through the Coroutine Job Tree](https://android-expert.hashnode.dev/cancelled-by-a-sibling-how-failure-travels-through-the-coroutine-job-tree?utm_source=hashnode&utm_medium=feed)

A field guide to Job hierarchies, why SupervisorJob exists, and the supervisorScope mistakes that quietly bring the bug back.

3d ago · 15 min read · android-expert.hashnode.dev  
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-   [#structuredconcurrency](https://hashnode.com/tag/structuredconcurrency)

## Written by

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Android Expert· Kotlin, Jetpack Compose & production pitfalls

Android Engineer & Kotlin Advocate. 🚀 Deep dives into Jetpack Compose, Coroutines, and Clean Architecture. Turning complex code into scalable solutions. 🛠️✨

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