javascript - 使用nodejs中的集群在两个不同的worker中运行两个任务

Question

我正在学习 NodeJS 中的集群。我有两个任务，一个是node-sass，另一个是uglifyjs，我想由两个不同的工作人员使用nodeJS中的集群来运行它。虽然代码是工作文件并创建 SASS -> CSS 文件和 main.js 到 main.min.js 文件。

但我不确定它是否是由单独的 worker 处理的。让我知道我可以在哪里进行修改 -

• SASS -> CSS 由一名工作人员处理
• UglifyJS 第二个工作人员的任务
• 两项任务完成后，主控制台将显示成功消息

以下是我的代码:

const cluster = require('cluster');
const http = require('http');
const numCPUs = require('os').cpus().length;
var fs = require('fs');
var UglifyJS = require("uglify-js");
var sass = require('node-sass');

if (cluster.isMaster) {
  console.log(`Master ${process.pid} is running`);

  // Fork workers.
  for (let i = 0; i < 2; i++) {
    cluster.fork();
  }

  cluster.on('exit', (worker, code, signal) => {
    console.log(`worker ${worker.process.pid} died`);
  });
} else {


var result = UglifyJS.minify("js/main.js");
fs.writeFile(__dirname + '/js/main.min.js', result.code, function(err){
    if(err)
        throw err;
});

sass.render({
  file: './css/main.scss',
  outFile: 'css',
}, function(err, result) { 
    if(err)
        throw err;
    fs.writeFile(__dirname + '/css/main.css', result.css, function(err){
        if(err)
            throw err;
    });
});

  console.log(`Worker ${process.pid} started`);
}

Answer 1

我认为这会有所帮助

const cluster = require('cluster');
const http = require('http');
const numCPUs = require('os').cpus().length;
var fs = require('fs');
var UglifyJS = require("uglify-js");
var sass = require('node-sass');

if (cluster.isMaster) {
    console.log(`Master ${process.pid} is running`);
    cluster.fork()
        .on('exit', (worker, code, signal) => {
            console.log(`worker ${worker.process.pid} died`);
        });
    cluster.fork()
        .on('exit', (worker, code, signal) => {
            console.log(`worker ${worker.process.pid} died`);
        });

} else if (cluster.worker.id === 1) {
    console.log(`Worker ${process.pid} started`);
    sass.render({
        file: './css/main.scss',
        outFile: 'css',
    }, function (err, result) {
        if (err)
            throw err;
        fs.writeFile(__dirname + '/css/main.css', result.css, function (err) {
            if (err)
                throw err;
        });
    });
    process.exit();
} else {
    var result = UglifyJS.minify("js/main.js");
    fs.writeFile(__dirname + '/js/main.min.js', result.code, function (err) {
        if (err)
            throw err;
    });
    process.exit();
}