Node.js-产生的进程正在生成错误"execvp():没有这样的文件或目录"； [英] Node.js - spawned process is generating error "execvp(): No such file or directory"

问题描述

我有以下代码旨在产生和分离子进程，这只是同一目录中的另一个node.js脚本.这是我正在运行的确切代码:

I have the following code that's intended to spawn and detach a child process, which is just another node.js script in the same directory. Here's the exact code I'm running:

var fs = require('fs');
var child = require('child_process');

var out = fs.openSync('/tmp/daemon.log', 'a');
var options = {
    cwd: process.cwd(),
    env: process.env,
    detached: true,
    stdio: ['ignore', out, process.stderr]
};

child.spawn('/usr/local/bin/node ./daemon.js', [], options).unref();

所有daemon.js现在所做的都是在两秒钟的超时后退出:

All daemon.js does right now is exit after a timeout of two seconds:

setTimeout(function() {
    console.log('done');
}, 2000);

如果我直接从终端运行daemon.js，它将按预期工作.如果我运行传递给child.spawn()的相同命令，则它将按预期工作.但是，当我运行脚本时，它将生成此错误:

If I run daemon.js directly from the terminal it works as expected. If I run the same command being passed to child.spawn() it works as expected. However when I run the script it generates this error:

execvp(): No such file or directory

似乎不是特定于node.js的，我在弄清楚问题出在哪里时遇到了麻烦.有人有什么建议吗?

It doesn't seem node.js specific and I'm having trouble working out what the problem is. Does anybody have any suggestions?

作为参考，这是在OS X 10.8.5服务器上，该服务器使用Homebrew在路径/usr/local/Cellar/node/0.10.25/bin/node上安装了节点，并符号链接到/usr/local/bin/node.

For reference, this is on OS X 10.8.5 Server with node installed using Homebrew at path /usr/local/Cellar/node/0.10.25/bin/node and symlinked to /usr/local/bin/node.

编辑

代码现在可以完美运行了，添加的avdantage与运行主脚本的工作目录无关！

The code now works perfectly, with the added avdantage of it not mattering which working-directory the main script is run from!

var fs = require('fs');
var child = require('child_process');

var out = fs.openSync('/tmp/daemon.log', 'a');
var options = {
    cwd: process.cwd(),
    env: process.env,
    detached: true,
    stdio: ['ignore', out, process.stderr]
};

child.spawn('/usr/local/bin/node', [__dirname + '/daemon.js'], options).unref();

推荐答案

尝试更改

child.spawn('/usr/local/bin/node ./daemon.js', [], options).unref();

收件人:

child.spawn('/usr/local/bin/node', ['./daemon.js'], options).unref();

或者:

child.spawn('node', ['daemon.js'], options).unref();

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