Question

Hey Guys我正在运行这个带有节点的API生成器，

var cluster = require('cluster');

if (cluster.isMaster) {

  // first set up logging for the master
  var logger = require("./api/helpers/logging.js")();

  var num_cpus = require('os').cpus().length;
  logger.debug(num_cpus + " <-- that many CPUs detected!");

  // create a fork for each CPU (or "thread" for Intel CPUs...)
  for (var i = 0; i < num_cpus; i++) {
    cluster.fork();
  }

  // if one of the forks dies, spawn a replacement!
  cluster.on('exit', function (worker, code, sig) {
    var report = ('Worker '+worker.process.pid+' died... Creating a new one!\n');
    report += ('  -- code: '+code+'\n');
    report += ('  -- sig: '+sig+'\n');
    logger.warn(report);
    cluster.fork();
  });

  cluster.on('uncaughtException', function(error) {
    logger.error(error);
    process.exit();
  });

}
else {

  var http = require("http");
  var app = require("./api/do_api.js");
  http.createServer(app).listen(app.get('port'), function () {
//    console.log('Express server listening on port ' + app.get('port'));
  });
}

这与node thefile.js完美匹配，并根据需要生成我的端点，但如果我尝试将require（）“删除”到我的server.js中，我将问题集成到我的grunt serve中我最终得到了多个地址使用错误，如下面的

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: bind EADDRINUSE
    at errnoException (net.js:901:11)
    at net.js:1073:26
    at Object.25:1 (cluster.js:587:5)
    at handleResponse (cluster.js:171:41)
    at respond (cluster.js:192:5)
    at handleMessage (cluster.js:202:5)
    at process.EventEmitter.emit (events.js:117:20)
    at handleMessage (child_process.js:318:10)
    at child_process.js:392:7
    at process.handleConversion.net.Native.got (child_process.js:91:7)
connect.multipart() will be removed in connect 3.0
visit https://github.com/senchalabs/connect/wiki/Connect-3.0 for alternatives
debugger listening on port 5858
connect.limit() will be removed in connect 3.0
debugger listening on port 5858

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: bind EADDRINUSE
    at errnoException (net.js:901:11)
    at net.js:1073:26
    at Object.23:1 (cluster.js:587:5)
    at handleResponse (cluster.js:171:41)
    at respond (cluster.js:192:5)
    at handleMessage (cluster.js:202:5)
    at process.EventEmitter.emit (events.js:117:20)
    at handleMessage (child_process.js:318:10)
    at child_process.js:392:7
    at process.handleConversion.net.Native.got (child_process.js:91:7)

我的server.js的内容是这样的

'use strict';

var express  = require('express'),
    path     = require('path'),
    fs       = require('fs'),
    mongoose = require('mongoose');

/**
 * Main application file
 */

// Set default node environment to development
process.env.NODE_ENV = process.env.NODE_ENV || 'development';

// Application Config
var config = require('./lib/config/config');

// Connect to database
var db = mongoose.connect(config.mongo.uri, config.mongo.options);

// Bootstrap models
var modelsPath = path.join(__dirname, 'lib/models');
fs.readdirSync(modelsPath).forEach(function (file) {
  if (/(.*)\.(js$|coffee$)/.test(file)) {
    require(modelsPath + '/' + file);
  }
});

// Populate empty DB with sample data
require('./lib/config/dummydata');

// Passport Configuration
var passport = require('./lib/config/passport');

var app = express();

// Express settings
require('./lib/config/express')(app);

// Routing
require('./lib/routes')(app);

require('./thefile.js');  // this is the kicker file shown above

// Start server
app.listen(config.port, function () {
  console.log('Express server listening on port %d in %s mode', config.port, app.get('env'));
});

// Expose app
exports = module.exports = app;

我怎样才能让它发挥作用？

Answer 1

你在server.js和do_api.js中都使用了listen。您只需要开始侦听一次请求。

您遇到此错误，因为您无法从多个进程侦听同一主机和端口。即使您删除了对listen的重复调用，除非每个集群在其自己的环境中运行，否则这将无效：它们要么侦听不同主机上的相同端口，要么监听同一主机上的不同端口，或者（可能是你想要的）他们在单个主机/端口组合中充当单个请求监听器的工作者。

将节点任务转换为Grunt任务

1 个答案: