yarn serve stuck at "95% emitting CopyPlugin"

Version

3.9.2

Reproduction link

https://github.com/intijk/vue-cli3-bug-report-copyplugin-stuck

Environment info

phao@mm:~/workspace/athena-vc3$ vue info

Environment Info:

  System:
    OS: Linux 4.15 Ubuntu 16.04.6 LTS (Xenial Xerus)
    CPU: (12) x64 Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
  Binaries:
    Node: 12.5.0 - /usr/bin/node
    Yarn: 1.16.0 - /usr/bin/yarn
    npm: 6.9.0 - /usr/bin/npm
  Browsers:
    Chrome: 75.0.3770.100
    Firefox: 67.0.4
  npmPackages:
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0 
    @vue/babel-plugin-transform-vue-jsx:  1.0.0 
    @vue/babel-preset-app:  3.9.2 
    @vue/babel-preset-jsx:  1.0.0 
    @vue/babel-sugar-functional-vue:  1.0.0 
    @vue/babel-sugar-inject-h:  1.0.0 
    @vue/babel-sugar-v-model:  1.0.0 
    @vue/babel-sugar-v-on:  1.0.0 
    @vue/cli-overlay:  3.9.0 
    @vue/cli-plugin-babel: ^3.8.0 => 3.9.2 
    @vue/cli-plugin-e2e-cypress: ^3.8.0 => 3.9.0 
    @vue/cli-plugin-eslint: ^3.8.0 => 3.9.2 
    @vue/cli-plugin-pwa: ^3.8.0 => 3.9.0 
    @vue/cli-plugin-typescript: ^3.8.0 => 3.9.0 
    @vue/cli-plugin-unit-jest: ^3.8.0 => 3.9.0 
    @vue/cli-service: ^3.8.0 => 3.9.2 
    @vue/cli-shared-utils:  3.9.0 
    @vue/component-compiler-utils:  2.6.0 
    @vue/eslint-config-prettier: ^4.0.1 => 4.0.1 
    @vue/eslint-config-typescript: ^4.0.0 => 4.0.0 
    @vue/preload-webpack-plugin:  1.1.0 
    @vue/test-utils: 1.0.0-beta.29 => 1.0.0-beta.29 
    @vue/web-component-wrapper:  1.2.0 
    eslint-plugin-vue: ^5.0.0 => 5.2.3 (4.7.1)
    jest-serializer-vue:  2.0.2 
    typescript: ^3.4.3 => 3.5.2 
    vue: ^2.6.10 => 2.6.10 
    vue-eslint-parser:  5.0.0 (2.0.3)
    vue-hot-reload-api:  2.3.3 
    vue-jest:  3.0.4 
    vue-loader: ^15.7.0 => 15.7.0 
    vue-markdown: ^2.2.4 => 2.2.4 
    vue-resource: ^1.5.1 => 1.5.1 
    vue-router: ^3.0.3 => 3.0.7 
    vue-style-loader:  4.1.2 
    vue-template-compiler: ^2.6.10 => 2.6.10 
    vue-template-es2015-compiler:  1.9.1 
    vuetable-2: ^1.7.5 => 1.7.5 
    vuex: ^3.0.1 => 3.1.1 
  npmGlobalPackages:
    @vue/cli: Not Found

Steps to reproduce

cd public

ln -s / root

cd …

yarn serve

What is expected?

compile without issue

What is actually happening?

stuck at 95% emitting CopyPlugin

---

My need is simple, I want to serve files belong to a folder as is, a huge one, with symlink.

I am not sure if I am using the public in correct way, but in vue cli 2, that was a valid usage.

Maybe I should add ignore for copy plugin ? But really need some guide here on how to do that. Thank you very much!

[sodatea]

Vue CLI is not meant to be a static web server so this is not a valid use case.

[jestima-mpr]

FYI, the problem in my scenario appeared to be related to not enough memory available in the environment I was working on for the node process, after I increased memory it solved the issue.