I have the following code (using node v0.10.0 and Express 3.3.5) which is
aimed at serving an mp3 audio file to an http client.
app.get('/media/:id/play', function (req, res) {
var file = findById(Number(req.params.id));
if (!file) { return res.send(404); }
res.writeHead(200, {
'Content-Type': 'audio/mpeg',
'Transfer-Encoding': 'chunked',
'Connection': 'close'
});
var readStream = fs.createReadStream(file.path);
res.on('unpipe', function () {
res.end();
});
readStream.pipe(res);
});
If I start the server and hit the URL in a browser it streams the audio
just fine. If I kill the browser I can see that the server socket is
closed ($NODE_DEBUG=net,http) and the readStream fires the close event.
However, if I open the url in a browser again, the memory on the node
process grows a couple MB each time, and never appears to get released. I
have studied the API to try to ensure I'm cleaning up properly, but I don't
see anything I'm missing -- which is why I'm posting here. What am I doing
wrong?
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