Memory consumption in Node.js/Express application

Question

My application is running on one Modulus servo with 512 MB of memory. A run of the app looks like this:

As you can see, the memory rises during execution. But then it stays at 100% indefinitely, even if no further requests are made. I am concerned about the memory consumption of the app on repeated requests.

Is there something that I need to do in my Node.js/Express app to get memory consumption down again after a request finishes?

Currently, I only have this:

process.on("exit", function () {
    'use strict';
    if (mongoose && mongoose.connection) {
        mongoose.connection.close();
    }
});

Answer 1

I think you have memory leak.

Which version of Node.js you are using?

0.12 - Seems to consume more memory.

Check this answers for more,

Detecting memory leaks in nodejs

Tutorial -- https://github.com/felixge/node-memory-leak-tutorial