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Bug: Watch mode on Linux causes a ENOSPC Node.js error #3254

Description

@maraisr

Versions:

  • Yarn: v0.21.3
  • Node: v6.9.2
  • npm: 3.10.9
  • Ubuntu: 16.10

Installed using: yarn global add jest (With a chown at ~/.config/yarn/global/node_modules/)

Command failed: jest -c lib/tools/testing/jest.config.json --no-cache --watch

If I run jest -c lib/tools/testing/jest.config.json --no-cache testing works 100% fine.

Error message:

fs.js:1431
    throw error;
    ^

Error: watch /home/fooBar/dev/blah/lib/tools/testing/node_modules/core-js/modules ENOSPC
    at exports._errnoException (util.js:1022:11)
    at FSWatcher.start (fs.js:1429:19)
    at Object.fs.watch (fs.js:1456:11)
    at NodeWatcher.watchdir (/home/fooBar/.config/yarn/global/node_modules/sane/src/node_watcher.js:148:20)
    at Walker.<anonymous> (/home/fooBar/.config/yarn/global/node_modules/sane/src/node_watcher.js:361:12)
    at emitTwo (events.js:106:13)
    at Walker.emit (events.js:191:7)
    at /home/fooBar/.config/yarn/global/node_modules/walker/lib/walker.js:69:16
    at go$readdir$cb (/home/fooBar/.config/yarn/global/node_modules/graceful-fs/graceful-fs.js:149:14)
    at FSReqWrap.oncomplete (fs.js:123:15)

Tmp dir: yarn config set tmp /tmp/

Disk free space: df -h / (11% used)

Jest config: at lib/tools/testing/jest.config.json

{
	"clearMocks": true,
	"bail": true,
	"transform": {
		".(ts|tsx)": "<rootDir>/lib/tools/testing/node_modules/ts-jest/preprocessor.js"
	},
	"testResultsProcessor": "<rootDir>/lib/tools/testing/node_modules/ts-jest/coverageprocessor.js",
	"testMatch": [
		"**/__tests__/*.(ts|tsx|js)"
	],
	"moduleFileExtensions": [
		"ts",
		"tsx",
		"js"
	],
	"moduleDirectories": [
		"node_modules",
		"<rootDir>/lib/tools/testing/node_modules"
	],
	"collectCoverage": true,
	"coverageDirectory": "./reports/",
	"coverageReporters": [
		"clover",
		"lcov",
		"text-summary"
	],
	"coverageThreshold": {
		"global": {
			"branches": 50,
			"functions": 80,
			"lines": 60
		}
	},
	"collectCoverageFrom": [
		"{src,lib}/**/*.{ts,js}",
		"!lib/{tools}/**/*",
		"!**/{node_modules,vendor}/**"
	]
}

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