What is the reason for the failure of the require("perf_hooks") function?

My understanding is that "perf_hooks" is a component of Node.js. However, when I run tests with npm test, it fails for me and shows the following error (some file names have been altered):

Error: ENOENT: no such file or directory, open 'perf_hooks'
      at Object.openSync (fs.js:465:3)
      at Object.readFileSync (fs.js:368:35)
      at SandboxedModule._getCompileInfo (node_modules/sandboxed-module/lib/sandboxed_module.js:265:20)
      at SandboxedModule._compile (node_modules/sandboxed-module/lib/sandboxed_module.js:245:22)
      at createInnerSandboxedModule (node_modules/sandboxed-module/lib/sandboxed_module.js:183:23)
      at SandboxedModule.RecursiveRequireProxy (node_modules/sandboxed-module/lib/sandboxed_module.js:214:27)
      at /Users/asmirnov/Documents/blabla2.js:51:12
      at Object.<anonymous> (lib/profiler.js:53:3)
      at SandboxedModule._compile (node_modules/sandboxed-module/lib/sandboxed_module.js:251:19)
      at createInnerSandboxedModule (node_modules/sandboxed-module/lib/sandboxed_module.js:183:23)
      at SandboxedModule.RecursiveRequireProxy (node_modules/sandboxed-module/lib/sandboxed_module.js:214:27)
      at Object.<anonymous> (lib/blabla1.js:29:20)
      at SandboxedModule._compile (node_modules/sandboxed-module/lib/sandboxed_module.js:251:19)
      at createInnerSandboxedModule (node_modules/sandboxed-module/lib/sandboxed_module.js:183:23)
      at SandboxedModule.RecursiveRequireProxy (node_modules/sandboxed-module/lib/sandboxed_module.js:214:27)
      at SandboxedModule.requireInterceptor (node_modules/sandboxed-module/lib/sandboxed_module.js:227:9)
      at Context.<anonymous> (test/blabla1.js:73:22)
      at processImmediate (internal/timers.js:458:21)

The snippet below is from the file (lib/profiler.js) where "perf_hooks" is utilized:

const {performance, PerformanceObserver} = (function()
{
  try
  {
    if (window && typeof window.performance == "undefined")
      throw new TypeError();
    return window;
  }
  catch (e)
  {
    return require("perf_hooks");
  }
})();

What could possibly be causing this issue? Interestingly, in some instances (npm run ..) it behaves as expected. Any insights or recommendations would be greatly appreciated.

PS. My Node version is relatively recent:

> node --version
v14.8.0
javascriptnpmchromiumbenchmarking

Answer №1

The problem with the "sandboxed-module" 2.0.3 has been resolved in version 2.0.4.

Answer №2

perf_hooks is indeed present in the specified version of Node.js. In release 14.8.0, the require() function generates a MODULE_NOT_FOUND error (instead of ENOENT) when unable to locate a module, indicating that the issue lies elsewhere.

If the error is originating from the require() line, it's possible that require() has been altered through monkey patching. If only require() was patched and not module.require(), consider switching instances of require() to module.require() within lib/profiler.js.

UPDATE: Given the OP's insight, it is probable that sandboxed-module is causing trouble by interfering with module loading. Although they claim the issue is resolved in version 2.0.4, according to details from the repository fix information, it appears to be addressed in version 2.0.1. It is advisable to upgrade to 2.0.4 (or later) for resolution, as of this moment. 👍

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