Question

我一直试图解决这个问题几个小时，无休止的谷歌搜索，我尝试启动应用程序，转到网址，看到503服务不可用错误，然后我进入app-root / repo，尝试手动启动server.js，并获得以下内容：

[my-app-url.rhcloud.com repo]\> node server.js
{ [Error: Cannot find module '../build/Release/bson'] code: 'MODULE_NOT_FOUND' }

js-bson: Failed to load c++ bson extension, using pure JS version
Connecting to server

events.js:72
    throw er; // Unhandled 'error' event
          ^
Error: listen EADDRINUSE
at errnoException (net.js:901:11)
at Server._listen2 (net.js:1039:14)
at listen (net.js:1061:10)
at net.js:1143:9
at dns.js:72:18
at process._tickCallback (node.js:415:13)
at Function.Module.runMain (module.js:499:11)
at startup (node.js:119:16)
at node.js:902:3

这让我感到疯狂，我所做的只是一个简单的api，它在我当地的环境中完美运作。

谢谢。

Answer 1

此程序的另一个程序或实例已在同一端口上运行。

运行 - sudo netstat -tapen | grep ":<<your given port>>"

然后杀死进程。

然后尝试运行服务器......

由于

Answer 2

你需要绑定到OPENSHIFT_NODEJS_IP，我知道你只绑定到正确的端口，而不是ip：https://developers.openshift.com/en/node-js-getting-started.html

https://github.com/openshift-quickstart/openshift-nodejs-http-and-websocket-example/blob/master/server.js#L1

var ipaddress = process.env.OPENSHIFT_NODEJS_IP || "127.0.0.1";
var port      = process.env.OPENSHIFT_NODEJS_PORT || 8080;

var WebSocketServer = require('ws').Server
var http = require('http');

var server = http.createServer(function(request, response) {
    console.log((new Date()) + ' Received request for ' + request.url);
    response.writeHead(200, {'Content-Type': 'text/plain'});
      response.write("Welcome to Node.js on OpenShift!\n\n");
      response.end("Thanks for visiting us! \n");
});

server.listen( port, ipaddress, function() {
    console.log((new Date()) + ' Server is listening on port 8080');
});

wss = new WebSocketServer({
    server: server,
    autoAcceptConnections: false
});
wss.on('connection', function(ws) {
  console.log("New connection");
  ws.on('message', function(message) {
    ws.send("Received: " + message);
  });
  ws.send('Welcome!');
});

console.log("Listening to " + ipaddress + ":" + port + "...");

无法让节点应用在openshift上运行，错误：收听EACCES

2 个答案: