Question

为什么从nodejs网站获取的此节点集群示例代码在生产中失败？

链接到示例代码：https://nodejs.org/api/cluster.html#cluster_cluster

const cluster = require('cluster');
const http = require('http');
const numCPUs = require('os').cpus().length;

if (cluster.isMaster) {
  console.log(`Master ${process.pid} is running`);

  // Fork workers.
  for (let i = 0; i < 2; i++) { // changed from numCPUs to 2
    cluster.fork();
  }

  cluster.on('exit', function(worker) {
    console.log(`worker ${worker.id} died...`);
    cluster.fork(); // reset
  });

} else {
  // Workers can share any TCP connection
  // In this case it is an HTTP server
  http.createServer((req, res) => {
    res.writeHead(200);
    res.end('hello world\n');
  }).listen(8000);

  console.log(`Worker ${process.pid} started`);
}

使用命令node server.js可以正常运行但是，如果使用babel build构建它，然后运行它，则将失败，并显示以下错误。部署到Heroku时也是一样。如何在生产中进行这项工作？

Error: Cannot find module '/app/server/undefined'
at Function.Module._resolveFilename (module.js:547:15)
at Function.Module._load (module.js:474:25)
at Function.Module.runMain (module.js:693:10)
at startup (bootstrap_node.js:191:16)
at bootstrap_node.js:612:3

节点群集示例在生产构建中失败

0 个答案: