Question

我在创建子进程时传递参数

if (cluster.isMaster) {
    for (var i = 0; i < os.cpus().length; i++) {
        var new_worker_env = {};
        new_worker_env["WORKER_NAME"] = "worker" + i;

        var new_worker = cluster.fork(new_worker_env);
    }
}

然后尝试在孩子中阅读：

if ( process.env["WORKER_NAME"] != undefined ) instance.name = process.env["WORKER_NAME"];

但这个var不存在，为什么？

节点v0.8.8

Answer 1

似乎在Windows上为我工作，Node.js版本0.8.8

var cluster = require('cluster'),
    os      = require('os');

if (cluster.isMaster) {
    for (var i = 0; i < os.cpus().length; i++) {
        var new_worker_env = {};

        new_worker_env["WORKER_NAME"] = "worker" + i;

        var new_worker = cluster.fork(new_worker_env);
    }
} else {
    console.log(process.env['WORKER_NAME']);
}

输出：

worker0
worker1

node.js fork函数并将参数传递给child-process

1 个答案: