vite build is opening too many files

Describe the bug

I’m trying to build an application, but developers keep running into “too many open files” issues.

I know too many open files issues can be worked around by raising ulimit etc, but there is an upper limit.

However, I doubt there’s a reason for vite build too keep that many files open at the same time.

Can this be changed, so files are not kept open for so long/only a reasonable number of files is kept open?

Reproduction

Build a project with a large number of dependencies.

System Info

vite 2.4.4

Used Package Manager

npm

Logs

> blub-ui@1.0.0 build /build/source
> vite build

vite v2.4.4 building for production...

warn - You have enabled the JIT engine which is currently in preview.
warn - Preview features are not covered by semver, may introduce breaking changes, and can change at any time.
'react' is imported by react?commonjs-external, but could not be resolved – treating it as an external dependency
'linkify-it' is imported by linkify-it?commonjs-external, but could not be resolved – treating it as an external dependency
'tlds' is imported by tlds?commonjs-external, but could not be resolved – treating it as an external dependency
✓ 2435 modules transformed.
[load-fallback] Could not load /nix/store/d3nah5l7ff9clkad974nmq686cmn325c-blub-ui-1.0.0/node_modules/@material-ui/icons/esm/PlayArrowTwoTone.js (imported by ../../nix/store/d3nah5l7ff9clkad974nmq686cmn325c-blub-ui-1.0.0/node_modules/@material-ui/icons/esm/index.js): EMFILE: too many open files, open '/nix/store/d3nah5l7ff9clkad974nmq686cmn325c-blub-ui-1.0.0/node_modules/@material-ui/icons/esm/PlayArrowTwoTone.js'
error during build:
Error: Could not load /nix/store/d3nah5l7ff9clkad974nmq686cmn325c-blub-ui-1.0.0/node_modules/@material-ui/icons/esm/PlayArrowTwoTone.js (imported by ../../nix/store/d3nah5l7ff9clkad974nmq686cmn325c-blub-ui-1.0.0/node_modules/@material-ui/icons/esm/index.js): EMFILE: too many open files, open '/nix/store/d3nah5l7ff9clkad974nmq686cmn325c-blub-ui-1.0.0/node_modules/@material-ui/icons/esm/PlayArrowTwoTone.js'
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! blub-ui@1.0.0 build: `vite build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the blub-ui@1.0.0 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /build/.npm/_logs/2021-07-29T11_32_46_689Z-debug.log

### Validations

- [X] Follow our [Code of Conduct](https://github.com/vitejs/vite/blob/main/CODE_OF_CONDUCT.md)
- [X] Read the [Contributing Guidelines](https://github.com/vitejs/vite/blob/main/.github/contributing.md).
- [X] Read the [docs](https://vitejs.dev/guide).
- [X] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
- [X] Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to https://github.com/vuejs/vue-next instead.
- [X] Check that this is a concrete bug. For Q&A open a [GitHub Discussion](https://github.com/vitejs/vite/discussions) or join our [Discord Chat Server](https://chat.vitejs.dev/).

[schummar]

The issue is kind of old, but in case anybody else still has the problem: I encountered it too and was able to solve it with a fix in rollup: #rollup 4170, https://github.com/rollup/rollup/pull/4200

Make sure you have rollup >= 2.53.0 in your dependencies and try again.

[flokli]

The issue is kind of old, but in case anybody else still has the problem: I encountered it too and was able to solve it with a fix in rollup: #rollup 4170, rollup/rollup#4200

Make sure you have rollup >= 2.53.0 in your dependencies and try again.

Thanks! Let’s close this then.