上载带有节点的大文件(1GB)并表达 | 上载带有节点的大文件

本文介绍了上载带有节点的大文件(1GB)并表达的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

尝试使用express将大文件上传到节点js实例，大文件将失败.带有以下错误消息:

Trying to upload a large file to a node js instance using express and it will fail with large files.With the following errormessage:

Error: Request aborted
at IncomingMessage.<anonymous> (/server/node_modules/express/node_modules/connect/node_modules/formidable/lib/incoming_form.js:107:19)
at IncomingMessage.EventEmitter.emit (events.js:92:17)
at abortIncoming (http.js:1892:11)
at Socket.serverSocketCloseListener (http.js:1904:5)
at Socket.EventEmitter.emit (events.js:117:20)
at TCP.close (net.js:466:12)
/server/upload/

buffer.js:194
  this.parent = new SlowBuffer(this.length);
                ^
RangeError: length > kMaxLength
    at new Buffer (buffer.js:194:21)
    at fs.js:220:16
    at Object.oncomplete (fs.js:107:15)
31 Jul 14:01:04 - [nodemon] app crashed - waiting for file changes before starting...

当我不想对数据进行分块处理时，该怎么办才能防止此错误?

What can I do to prevent this error when I don't want to chunk the data?

希望有人可以帮助解决；-)

Hope someone can help to solve ;-)

推荐答案

如果您分析错误消息

buffer.js:194
   this.parent = new SlowBuffer(this.length);
            ^
RangeError: length > kMaxLength

您可以看到kMaxLength是一个常数，用于指定进程的内存限制.
来自 https://github.com/joyent/node/wiki/FAQ

You can see that kMaxLength is a constant that specify the memory limit of a process.
From https://github.com/joyent/node/wiki/FAQ

因此您可以执行带有标志的节点

So you can execute node with the flag

node --max-old-space-size=2000 app.js

标志单位以MB为单位，请参阅( https://github.com. com/joyent/node/blob/master/deps/v8/ChangeLog )

The flag units is in MB see ( https://github.com/joyent/node/blob/master/deps/v8/ChangeLog)

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