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Is there any difference between keepAliveTimeout and connection timeout ? I am using node.js with express. I have specified timeout as follows:

const app = express();
app.listen(3000, '0.0.0.0', () => {
  console.log(`The server is running at http://localhost:3000/`);
});
app.on('connection', (socket) => {
  socket.setTimeout(60 * 1000);
});

Will above code change keepAliveTimeout ? In browser I am getting just Connection: keep-alive header in browser. How can I check keepAliveTimeout of my application ?

Sudhanshu Srivastava
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2 Answers2

1

Keep-Alive header can inform the client how long the server is willing to keep the connection open (timeout=N value) and how many requests you can do over the same connection (max=M) before the server will force a close of the connection.

Connection-TimeOut is when you request for connect and that takes mintue and don't get response so it give you Connection-TimeOut

Narendra Chouhan
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  • How can I set keepAliveTimeout value (N) for my application. Is there a way to check current keepAliveTimeout value of the application. In header, I am getting just `Connection: keep-alive`, I am not getting keepAliveTimeout value. – Sudhanshu Srivastava Mar 28 '19 at 09:28
  • you can specify timeout but server has no obligation to use that value. If server is configured with a different timeout, it will return its own Keep-Alive header. – Narendra Chouhan Mar 28 '19 at 09:36
  • That's exactly I want to ask that how we can set keepAliveTimeout value at node server. – Sudhanshu Srivastava Mar 28 '19 at 09:42
  • https://stackoverflow.com/questions/28229044/http-keep-alive-in-node-js you can refer this – Narendra Chouhan Mar 28 '19 at 13:07
0

You can set the parameters like this,

const server = app.listen(port, () => {
   console.log(`server on port ${port}`);
});
server.keepAliveTimeout = 65000;
server.headersTimeout = 66000;
dhruv
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