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copied!<p><strong>Quick and dirty solution for development</strong>:</p> <p>Use <a href="https://github.com/mattinsler/longjohn" rel="nofollow noreferrer">longjohn</a>, you get long stack traces that will contain the async operations.</p> <p><strong>Clean and correct solution</strong>: Technically, in node, whenever <a href="http://nodejs.org/api/all.html#all_class_events_eventemitter" rel="nofollow noreferrer">you emit an <code>'error'</code> event and no one listens to it, it will throw</a>. To make it not throw, put a listener on it and handle it yourself. That way you can log the error with more information.</p> <p><strike>To have one listener for a group of calls you can use <a href="http://nodejs.org/api/all.html#all_domain" rel="nofollow noreferrer">domains</a> and also catch other errors on runtime. Make sure each async operation related to http(Server/Client) is in different <a href="http://nodejs.org/api/all.html#all_domain" rel="nofollow noreferrer">domain</a> context comparing to the other parts of the code, the domain will automatically listen to the <code>error</code> events and will propagate it to it's own handler. So you only listen to that handler and get the error data. <a href="http://nodejs.org/api/all.html#all_additions_to_error_objects" rel="nofollow noreferrer">You also get more information for free.</a></strike>(Domains are depreceated). </p> <p>As <code>Mike</code> suggested you can also set <code>NODE_DEBUG=net</code> or use <a href="https://stackoverflow.com/q/174942/774086">strace</a>. They both provide you what is node doing internally. </p>

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