Node.js NodeJS：如何调试检测到 EventEmitter 内存泄漏.添加了 11 个侦听器

如何调试引发此错误的应用程序:

(node) warning: possible EventEmitter memory leak detected. 11 listeners added. Use emitter.setMaxListeners() to increase limit.
Trace
    at Socket.EventEmitter.addListener (events.js:160:15)
    at Socket.Readable.on (_stream_readable.js:653:33)
    at Socket.EventEmitter.once (events.js:179:8)
    at TCP.onread (net.js:527:26)

我找不到将侦听器限制增加.setMaxListeners(0);的假定泄漏对象

SOLUTION (from fardjad and jan salawa)

通过jan salawa的搜索，我找到了一个工作库(longjohn)，用于增加堆栈跟踪的详细程度.根据fardjad的回答，我发现我们必须制作EventEmitter.addListener AND EventEmitter.on的原型.

有了这个解决方案，我可以得到这个新的跟踪:

(node) warning: possible EventEmitter memory leak detected. 11 listeners added. Use emitter.setMaxListeners() to increase limit.
Trace
    at EventEmitter.addListener.EventEmitter.on (xxx/main.js:44:15)
    at Readable.on (_stream_readable.js:653:33)
    at ServerResponse.assignSocket (http.js:1072:10)
    at parser.onIncoming (http.js:1979:11)
    at parserOnHeadersComplete (http.js:119:23)
    at socket.ondata (http.js:1912:22)
    at TCP.onread (net.js:510:27)