简单的nodejs http代理失败,"打开的文件太多"

Question

好吧,忽略它.我已经打开了一个问题https://github.com/joyent/node/issues/793

试图运行http://www.catonmat.net/http-proxy-in-nodejs

var http = require('http');

http.createServer(function(request, response) {
  var proxy = http.createClient(80, request.headers['host'])
  var proxy_request = proxy.request(request.method, request.url, request.headers);
  proxy_request.addListener('response', function (proxy_response) {
    proxy_response.addListener('data', function(chunk) {
      response.write(chunk, 'binary');
    });
    proxy_response.addListener('end', function() {
      response.end();
    });
    response.writeHead(proxy_response.statusCode, proxy_response.headers);
  });
  request.addListener('data', function(chunk) {
    proxy_request.write(chunk, 'binary');
  });
  request.addListener('end', function() {
    proxy_request.end();
  });
}).listen(8080);

在发出大量请求后失败:

net.js:695
        self.fd = socket(self.type);
                  ^
Error: EMFILE, Too many open files
    at net.js:695:19
    at dns.js:171:30
    at IOWatcher.callback (dns.js:53:15)

OSX 10.6上的节点0.4.2

Answer 1

您可能在操作系统中打开(默认)已打开文件的最大值(对于Linux,它是1024),特别是如果您正在执行大量请求.例如,在Linux中,您可以使用ulimit命令增加此资源限制:

ulimit -n 8192