https://github.com/lffg-archive/adonisjs-lucid-hooks-race-condition-problem

https://github.com/lffg-archive/adonisjs-lucid-hooks-race-condition-problem

Last synced: 5 days ago
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• Host: GitHub
• URL: https://github.com/lffg-archive/adonisjs-lucid-hooks-race-condition-problem
• Owner: lffg-archive
• Created: 2020-05-04T20:59:12.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-01-09T22:56:53.000Z (almost 2 years ago)
• Last Synced: 2024-04-24T23:02:41.548Z (9 months ago)
• Language: TypeScript
• Size: 1.09 MB
• Stars: 1
• Watchers: 1
• Forks: 1
• Open Issues: 11
• Metadata Files:
  • Readme: README.md

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README

        
# AdonisJs Lucid Hooks Race Condition Problem

I created this repository in order to demonstrate a race condition problem that Lucid Hooks are susceptible for. As you can check in `start/routes.ts` file, when a lucid model with a hook is updated multiple times at once, the hook does not "catch" the new states, causing a race condition problem.

If you start a server and go to http://localhost:3333/exec-test-linear, you will see that the `count` field matches the times that the record was updated (50). However, when the record is updated at the same time (I've used `Promise.all` to achieve that), the hook suffers from a race-condition problem.

You can test for this wrong behavior at http://localhost:3333/exec-test-parallel.

I think that a type of FIFO queue should be implemented to avoid this kind of problems.