javascript - 许多用户连接到应用程序后 Node.js 、 path.js 崩溃

Question

大家好，我有一个用 Express.js 编写的应用程序，我使用 socket.io 向用户显示实时数据。

当有更多用户时，假设网站上有 10 个用户突然 Node 服务器崩溃，我收到此错误

path.js:309 var path = (i >= 0) ? arguments[i] : process.cwd();

即使我独自一人在网站上，并且多次刷新页面，或者只是停留在网站上并单击页面，我也会遇到相同的错误，有人知道如何解决此问题吗？

编辑:这是整个错误

path.js:309
      var path = (i >= 0) ? arguments[i] : process.cwd();
                                                   ^
Error: EMFILE, too many open files
    at Object.exports.resolve (path.js:309:52)
    at ExpressHandlebars.extend.loadTemplate (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/lib/express-handlebars.js:111:25)
    at ExpressHandlebars.load (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/lib/express-handlebars.js:153:18)
    at /Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/node_modules/async/lib/async.js:224:13
    at /Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/node_modules/async/lib/async.js:108:13
    at Array.forEach (native)
    at _each (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/node_modules/async/lib/async.js:32:24)
    at async.each (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/node_modules/async/lib/async.js:107:9)
    at _asyncMap (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/node_modules/async/lib/async.js:223:9)
    at Object.map (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/node_modules/async/lib/async.js:201:23)
    at ExpressHandlebars.mapTemplates (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/lib/express-handlebars.js:157:19)
    at fn (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/node_modules/async/lib/async.js:579:34)
    at Object._onImmediate (/Users/sredoje/Downloads/expressjs-template/node_modules/express3-handlebars/node_modules/async/lib/async.js:495:34)
    at processImmediate [as _immediateCallback] (timers.js:330:15)
>> application exited with code 

8

Answer 1

看看这个:https://github.com/paulmillr/chokidar/issues/45

看起来这是一个“打开文件太多”错误，如果您的应用程序与文件系统中的大量文件交互，则可能会发生这种情况。您没有指出您的平台是什么，我假设是 Linux，链接中建议的修复是提高您的 ulimit。

完整引用的修复:

EMFILE means there are too many open files. Brunch watches all your project files and it's usually a pretty big number. You can fix this error with setting max opened file count to a bigger number using the command ulimit -n <number> (10000 should be enough).