Is there a way in node.js to get the number of open connections and number of requests per second from a http server?

Assume the following simple server:

http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end("Hello World!");
}).listen(80);

Thanks.

Is there a way in node.js to get the number of open connections and number of requests per second from a http server?

Assume the following simple server:

http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end("Hello World!");
}).listen(80);

Thanks.

• javascript
• node.js
• node-http-proxy

Share Improve this question Follow asked May 10, 2013 at 7:23 JustinJustin 45.4k8383 gold badges213213 silver badges310310 bronze badges 3

• You can use ApacheBench or httperf. – robertklep Commented May 10, 2013 at 7:32
• I want these numbers from the server (node.js), not client. – Justin Commented May 10, 2013 at 7:35
• Ah right. Check out node-measured. – robertklep Commented May 10, 2013 at 7:51

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1 Answer 1

Sorted by: Reset to default 9

This is what I usually do when I want to double-check numbers ab/httperf/wrk/siege report:

var served = 0;
var concurrent = 0;

http.createServer(function (req, res) {
  concurrent++;
  res.writeHead(200, {'Content-Type': 'text/plain'});
  setTimeout(function() { // emulate some async delay
    served++;
    concurrent--;
    res.end("Hello World!");
  }, 10);
}).listen(80);

setInterval(function() {
  console.log('Requests per second:' + served);
  console.log('Concurrent requests:' + concurrent);
  served = 0;
}, 1000);