ENOSPC: System limit for number of file watchers reached

[charklewis]

I have found that when I start my create-react-app using yarn start the server starts as expected, however then immediately errors almost every file with ENOSPC: System limit for number of file watchers reached. I have managed to fix this by adding the below step to my yaml file (I found this solution here).

- name: Setup kernel for react, increase watchers
        run: echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

Is there are another a better approach to solve this?

[lizraeli]

Thanks for adding a solution @charklewis! I also ran into this issue and the solution seems to work for me. It would be good to at least mention it in the documentation here.

[panmona]

Unfortunately this solution is somehow not working for me. I get the following error:

Run echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
/__w/_temp/84726bfa-c8c8-4827-84e7-1288541db1df.sh: 1: /__w/_temp/84726bfa-c8c8-4827-84e7-1288541db1df.sh: sudo: not found
Error: Process completed with exit code 127.

My workflow:

  chrome:
    name: Chrome
    timeout-minutes: 15
    runs-on: ubuntu-latest
    container: cypress/browsers:node14.15.0-chrome86-ff82
    needs: build
    steps:
      - name: Checkout 🛎️
        uses: actions/checkout@v2

      - name: Increase File Watchers 🔭
        run: echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

		# other steps ...

I'm using the normal hosted runners in the latest version. Anyone maybe knows how to solve this issue? Could it be because I use a container?

EDIT: I confirmed it: It works all fine without the docker container, opened an issue in their repo: https://github.com/cypress-io/cypress-docker-images/issues/505

Related: #317

[FelipeLahti]

Unfortunately this solution is somehow not working for me. I get the following error:

Run echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
/__w/_temp/84726bfa-c8c8-4827-84e7-1288541db1df.sh: 1: /__w/_temp/84726bfa-c8c8-4827-84e7-1288541db1df.sh: sudo: not found
Error: Process completed with exit code 127.

My workflow:

  chrome:
    name: Chrome
    timeout-minutes: 15
    runs-on: ubuntu-latest
    container: cypress/browsers:node14.15.0-chrome86-ff82
    needs: build
    steps:
      - name: Checkout 🛎️
        uses: actions/checkout@v2

      - name: Increase File Watchers 🔭
        run: echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

		# other steps ...

I'm using the normal hosted runners in the latest version. Anyone maybe knows how to solve this issue? Could it be because I use a container?

EDIT: I confirmed it: It works all fine without the docker container, opened an issue in their repo: cypress-io/cypress-docker-images#505

Related: #317

This worked for me! Not seeing the error anymore:

      - uses: actions/checkout@v2
      - name: Increase file watchers
        run: echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
      - name: Run Component tests
        uses: cypress-io/github-action@v2
        with:
          command: npx cypress run-ct

[MikeMcC399]

Closing

• A workaround has been shared
• This is not an issue with github-action
• CRA appears to be now unsupported. See https://github.com/facebook/create-react-app/issues/13393