网页包4：致命错误：调用和重试上次分配失败-JavaScript堆内存不足

从Webpack 3.x升级到Webpack 4.16.3后，我在运行

npm run dev

达+/-20分钟时遇到以下错误。我在一个大型VueJS项目中遇到此错误。在其他项目上，我到目前为止没有错误。我在Github和Stackoverflow上查找了一些类似的问题，其中大多数似乎与Angular有关。我尝试了以下方法，但问题似乎仍然存在

--max_old_space_size=4096

我注意到的一件事是，在保存带有错误导入或导出语句的文件时会发生错误

错误日志：

[hardsource:d5167ca7] Using 732 MB of disk space.
[hardsource:d5167ca7] Last compilation did not finish saving. Building new cache.
 95% emitting HtmlWebpackPlugin                                                    
<--- Last few GCs --->

[6805:0x2babd20]   877537 ms: Mark-sweep 1344.1 (1396.8) -> 1342.6 (1394.9) MB, 455.6 / 0.1 ms  (average mu = 0.378, current mu = 0.000) last resort GC in old space requested
[6805:0x2babd20]   877899 ms: Mark-sweep 1342.6 (1394.9) -> 1342.6 (1394.9) MB, 362.1 / 0.1 ms  (average mu = 0.250, current mu = 0.000) last resort GC in old space requested


<--- JS stacktrace --->

==== JS stack trace =========================================

    0: ExitFrame [pc: 0xbd4a57041bd]
Security context: 0xeb4c809e6c9 <JSObject>
    1: byteLength(aka byteLength) [0x2eacaef7f969] [buffer.js:530] [bytecode=0x13d2a9725f69 offset=204](this=0x2dd8909822e1 <undefined>,string=0x3f1ce1e95801 <Very long string[23843934]>,encoding=0xeb4c80b1a99 <String[4]: utf8>)
    2: arguments adaptor frame: 3->2
    3: fromString(aka fromString) [0xfa9ba97d19] [buffer.js:341] [bytecode=0x13d2a9720091 offset...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
 1: 0x8b5f80 node::Abort() [node]
 2: 0x8b5fcc  [node]
 3: 0xab730e v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [node]
 4: 0xab7528 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [node]
 5: 0xea5152  [node]
 6: 0xeb43c6 v8::internal::Heap::AllocateRawWithRetry(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment) [node]
 7: 0xe828af v8::internal::Factory::NewRawTwoByteString(int, v8::internal::PretenureFlag) [node]
 8: 0xfc792f v8::internal::String::SlowFlatten(v8::internal::Handle<v8::internal::ConsString>, v8::internal::PretenureFlag) [node]
 9: 0xab4a44 v8::internal::String::Flatten(v8::internal::Handle<v8::internal::String>, v8::internal::PretenureFlag) [node]
10: 0xac2d8f v8::String::Utf8Length() const [node]
11: 0x8ce702  [node]
12: 0xb44409  [node]
13: 0xb44f79 v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*) [node]
14: 0xbd4a57041bd 
Aborted (core dumped)

我的

webpack.dev.conf.js

'use strict'
const path = require('path')
const utils = require('./utils')
const config = require('./config')
const vueLoaderConfig = require('./vue-loader.conf')
const VueLoaderPlugin = require('vue-loader/lib/plugin')
var HardSourceWebpackPlugin = require('hard-source-webpack-plugin')

function resolve (dir) {
  return path.join(__dirname, '..', dir)
}

const createLintingRule = () => ({
  test: /\.(js|vue)$/,
  loader: 'eslint-loader',
  enforce: 'pre',
  include: [resolve('resources/assets/js')],
  options: {
    formatter: require('eslint-friendly-formatter'),
    emitWarning: !config.dev.showEslintErrorsInOverlay,
  },
})

module.exports = {
  mode: (process.env.NODE_ENV === 'production')
    ? 'production'
    : 'development',
  context: path.resolve(__dirname, '../'),
  entry: {
    app: ['./resources/assets/sass/app.scss', './resources/assets/js/main.js'],
  },
  plugins: [
    new VueLoaderPlugin(),
    new HardSourceWebpackPlugin(),
    // You can optionally exclude items that may not be working with HardSource
    // or items with custom loaders while you are actively developing the
    // loader.
    new HardSourceWebpackPlugin.ExcludeModulePlugin([
      {
        // HardSource works with mini-css-extract-plugin but due to how
        // mini-css emits assets, assets are not emitted on repeated builds with
        // mini-css and hard-source together. Ignoring the mini-css loader
        // modules, but not the other css loader modules, excludes the modules
        // that mini-css needs rebuilt to output assets every time.
        test: /mini-css-extract-plugin[\\/]dist[\\/]loader/,
      },
      {
        test: /my-loader/,
        include: path.join(__dirname, 'vendor'),
      },
    ])
  ],
  output: {
    path: config.build.assetsRoot,
    filename: '[name].js',
    publicPath:
      process.env.NODE_ENV === 'production'
        ? config.build.assetsPublicPath
        : config.dev.assetsPublicPath,
  },
  resolve: {
    modules: ['node_modules'],
    extensions: ['.js', '.vue', '.json'],
    alias: {
      clockwork: resolve('resources/assets/js'),
    },
  },
  module: {
    rules: [
      ...(config.dev.useEslint ? [createLintingRule()] : []),
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: vueLoaderConfig,
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        include: [
          resolve('resources/assets/js'),
          resolve('node_modules/webpack-dev-server/client')
        ],
      },
      {
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('img/[name].[hash:7].[ext]'),
        },
      },
      {
        test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('media/[name].[hash:7].[ext]'),
        },
      },
      {
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('fonts/[name].[hash:7].[ext]'),
        },
      },
    ],
  },
  node: {
    // prevent webpack from injecting useless setImmediate polyfill because Vue
    // source contains it (although only uses it if it's native).
    setImmediate: false,
    // prevent webpack from injecting mocks to Node native modules
    // that does not make sense for the client
    dgram: 'empty',
    fs: 'empty',
    net: 'empty',
    tls: 'empty',
    child_process: 'empty',
  },
};

'use strict'
const utils = require('./utils')
const webpack = require('webpack')
const config = require('./config')
const merge = require('webpack-merge')
const baseWebpackConfig = require('./webpack.base.conf')
// const CopyWebpackPlugin = require('copy-webpack-plugin')
const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
// const AutoDllPlugin = require('autodll-webpack-plugin');
const FriendlyErrorsPlugin = require('friendly-errors-webpack-plugin')
const portfinder = require('portfinder')

const HOST = process.env.HOST
const PORT = process.env.PORT && Number(process.env.PORT)

const devWebpackConfig = merge(baseWebpackConfig, {
  module: {
    rules: utils.styleLoaders({ sourceMap: config.dev.cssSourceMap, usePostCSS: true })
  },
  // cheap-module-eval-source-map is faster for development
  devtool: config.dev.devtool,

  // these devServer options should be customized in /config/index.js
  devServer: {
    clientLogLevel: 'warning',
    historyApiFallback: {
      rewrites: [
        { from: /.*/, to: path.posix.join(config.dev.assetsPublicPath, 'index.html') },
      ],
    },
    hot: true,
    contentBase: false, // since we use CopyWebpackPlugin.
    compress: true,
    host: HOST || config.dev.host,
    port: PORT || config.dev.port,
    open: config.dev.autoOpenBrowser,
    overlay: config.dev.errorOverlay
      ? { warnings: false, errors: true }
      : false,
    publicPath: config.dev.assetsPublicPath,
    proxy: config.dev.proxyTable,
    quiet: true, // necessary for FriendlyErrorsPlugin
    watchOptions: {
      poll: config.dev.poll,
    }
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env': require('./config/dev.env')
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin(), // HMR shows correct file names in console on update.
    new webpack.NoEmitOnErrorsPlugin(),
    // https://github.com/ampedandwired/html-webpack-plugin
    new HtmlWebpackPlugin({
      filename: 'index.html',
      template: 'webpack/index.html',
      inject: true
    })
  ]
})

module.exports = new Promise((resolve, reject) => {
  portfinder.basePort = process.env.PORT || config.dev.port
  portfinder.getPort((err, port) => {
    if (err) {
      reject(err)
    } else {
      // publish the new Port, necessary for e2e tests
      process.env.PORT = port
      // add port to devServer config
      devWebpackConfig.devServer.port = port

      // Add FriendlyErrorsPlugin
      devWebpackConfig.plugins.push(new FriendlyErrorsPlugin({
        compilationSuccessInfo: {
          messages: [`Your application is running here: http://${devWebpackConfig.devServer.host}:${port}`],
        },
        onErrors: config.dev.notifyOnErrors
          ? utils.createNotifierCallback()
          : undefined
      }))

      resolve(devWebpackConfig)
    }
  })
})

编辑：经过一些挖掘，在Webpack开发者的帮助下，我们得出结论，这不是Webpack的问题。这很可能是由sass加载程序导致的内存泄漏。我仍然没有找到解决方案，但会不断更新

---

这种内存泄漏的情况是，当您多次编辑同一个文件时，每次保存该文件时，dev服务器都会以较小的增量开始溢出内存。当达到内存限制时，节点崩溃

没有足够的信息。发布您的网页包配置，并尝试从您的compilation@PlayMa256我已经添加了我的网页配置。这样做，并将其作为问题发布到存储库中，以便人们可以对其进行分析。如果你能减少到一个可重复的例子，这是更好的为他们。您的配置很好，没有什么奇怪的。谢谢，我将打开一个问题。您使用的是哪个版本的节点？尝试使用最新版本；不久前，V8中的最大字符串长度有一些更新，这看起来可能就是问题所在。