etcd-io/etcd

Find and classify all the exit codes returned by etcdserver

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#21,032 opened on Dec 17, 2025

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area/robustness-testinghelp wantedtype/feature

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Description

What would you like to be added?

Would be great to understand what are exit codes generated by etcd

Expectation: Table with linking to code paths that call os.Exit (or similar) and the exit code it returns. Possibly a explanation. Could send a PR to documentation.

Why is this needed?

find why we return code 1 here:

https://linuxfoundation.antithesis.com/report/tIS34e56zvz8EGo02cE4NaiW/oHVZIeQ_MCxANyR4-diuJdY5hL7hR4AiRfNN2BmFUS4.html?auth=v2.public.eyJuYmYiOiIyMDI1LTEyLTE3VDEyOjQ0OjMzLjM0NDA0OTQ5M1oiLCJzY29wZSI6eyJSZXBvcnRTY29wZVYxIjp7ImFzc2V0Ijoib0hWWkllUV9NQ3hBTnlSNC1kaXVKZFk1aEw3aFI0QWlSZk5OMkJtRlVTNC5odG1sIiwicmVwb3J0X2lkIjoidElTMzRlNTZ6dno4RUdvMDJjRTROYWlXIn19fXPuVD228qmdQXwuV-pSQCQqosYoQZAdtsyzTbcbBZ1vkRRFyoV8dGb-sepLluyd39_Qcy19G0GRmd7WAHi1pAw#/run/d88bbffe0d5c03a180e1ed7f085a7fd7-44-16/finding/606b95a49077f8782c4e4e9f00f1480e23232903

Contributor guide

Research direction
Search the etcdserver directory for all os.Exit calls using grep or a code search tool. Document each occurrence with the exit code and a brief explanation of why it is called. Consider exploring os.Exit wrapper functions like log.Fatal or panic. Prepare a table for the documentation.
Tech stack
go
Domain
backenddatabase
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65