gistfile1.js

var http = require("http");
var sys = require("sys");

function sendReq()
{
	sys.print("sendReq\n");
	
	var resent = false;
	function resendReq(reason)
	{
		if(!resent)
		{
			sys.print(reason + "\n");
			resent = true;
			sendReq();
		}
	}
	
	var client = http.createClient(80, "www.yahoo.com");
	client.on("error", function(){ resendReq("client error") });
	client.on("close", function(){ resendReq("client close") });
	
	var request = client.request("GET", "/", { Host: "www.yahoo.com" });
	request.on("error", function(){ resendReq("request error") });
	request.on("close", function(){ resendReq("request close") });
	request.end();
	
	var body = "";
	
	request.on("response", function(response){
		response.on("error", function(){ resendReq("response error") });
		response.on("close", function(){ resendReq("response close") });
		response.on("data", function(chunk){
			body = body + chunk;
		});
		response.on("end", function(){ resendReq("response end") });
	});
}

sendReq();

I'm not sure this constitutes a memory leak because you are creating a lot of http.createClient instances and attaching events listeners to them that never expire. If you moved the client object out of the sendReq function the "leak" should disappear.

this updated version should work. sendReq was being called twice, once for end and once for close