检测到可能的EventEmitter内存泄漏

我得到以下警告:

(node) warning: possible EventEmitter memory leak detected. 11 listeners added. Use emitter.setMaxListeners() to increase limit.
Trace: 
    at EventEmitter.<anonymous> (events.js:139:15)
    at EventEmitter.<anonymous> (node.js:385:29)
    at Server.<anonymous> (server.js:20:17)
    at Server.emit (events.js:70:17)
    at HTTPParser.onIncoming (http.js:1514:12)
    at HTTPParser.onHeadersComplete (http.js:102:31)
    at Socket.ondata (http.js:1410:22)
    at TCP.onread (net.js:354:27)

我在server.js中写了这样的代码:

http.createServer(
    function (req, res) { ... }).listen(3013);

如何解决这个问题?

当前回答

我也面临着同样的问题，但我已经成功地处理了异步等待。请检查是否有帮助。 let dataLength = 25; 之前: for(设I = 0;i < dataLength;我+ +){ sftp。get (remotePath fs.createWriteStream (xyzProject / ${数据[我]. name})); } 后: for(设I = 0;i < dataLength;我+ +){ 等待sftp。get (remotePath fs.createWriteStream (xyzProject / ${数据[我]. name})); }

2020-01-28 09:07:58

其他回答

将.on()替换为once()。使用once()在同一函数处理事件时删除事件监听器。

如果这不能解决问题，那么在package.json中重新安装restler :“restler git: / / github.com/danwrong/restler.git # 9 d455ff14c57ddbe263dbbcd0289d76413bfe07d”

这与restler 0.10对node的错误行为有关。你可以在这里看到git关闭的问题:https://github.com/danwrong/restler/issues/112 然而，npm还没有更新这个，所以这就是为什么你必须引用git头。

2013-12-17 00:40:28

You said you are using process.on('uncaughtException', callback); Where are you executing this statement? Is it within the callback passed to http.createServer?If yes, different copy of the same callback will get attached to the uncaughtException event upon each new request, because the function (req, res) { ... } gets executed everytime a new request comes in and so will the statement process.on('uncaughtException', callback);Note that the process object is global to all your requests and adding listeners to its event everytime a new request comes in will not make any sense. You might not want such kind of behaviour. In case you want to attach a new listener for each new request, you should remove all previous listeners attached to the event as they no longer would be required using: process.removeAllListeners('uncaughtException');

2016-07-06 13:41:16

有时，这些警告发生在我们没有做过的事情，而是我们忘记做的事情!

当我用npm安装dotenv包时遇到了这个警告，但在我在应用程序开始添加require('dotenv').load()语句之前就被打断了。当我回到项目时，我开始得到“可能的EventEmitter内存泄漏检测到”警告。

我以为问题出在我做了什么，而不是我没做什么!

一旦我发现了我的疏忽并添加了require语句，内存泄漏警告就清除了。

2017-01-21 18:59:10

当我在mac osx上安装aglio时，我也得到了这个警告。

我使用cmd修复它。