Socket hang up error with multiple http.get requests

javascript, node.js, sockets

Solution

I think your problems is the same of these people:

https://github.com/ether/etherpad-lite/issues/1541

Try adding a listener to the socket's `error event`

http.get(...)
.on('error', function(e) {
  console.log("Got error: " + e.message);
});

Problem

I'm using node.js to download a large number of files using http.get requests and the async.eachLimit method. When i increase the concurrency of the async method above 5, this 'socket hang up' error is prone to appearing and I can't understand why. Can anyone shine any light on why this is happening? Here's the error received ``` events.js:72 throw er; // Unhandled 'error' event ^ Error: socket hang up at createHangUpError (http.js:1472:15) at Socket.socketOnEnd [as onend] (http.js:1568:23) at Socket.g (events.js:180:16) at Socket.EventEmitter.emit (events.js:117:20) at _stream_readable.js:920:16 at process._tickCallback (node.js:415:13) ``` and here's the function that is repeatedly called with the async.eachLimit method ``` var urlPre = "http://api.steampowered.com/IEconItems_440/GetPlayerItems/v0001/?key="; var urlSidPre = "&steamid="; var urlInvSuf = "&inventory=yes"; var URL = urlPre+steam_API+urlSidPre+sid+urlInvSuf; //log.info("Downloading "+ alias + "'s inventory"); http.get(URL, function (res) { var body = ''; res.on('data', function (data) { body+=data; fs.appendFile(invLoc, data); }); res.on('end', function() { try { inventory = JSON.parse(body); //log.info(alias + "'s inventory downloaded"); } catch (e) { fs.unlinkSync(invLoc); log.error("parsing " + alias+"'s inventory"); loadInventory(sid, alias, invFolder, callback); return; } callback(inventory, alias); }); res.on('error', function (e, socket) { log.error(alias + " inventory error") }) }) ```

Original source