cluster.setupPrimary([settings])

• settings <Object> 参见 cluster.settings。

setupPrimary 用于更改默认的 'fork' 行为。一旦调用，该设置将出现在 cluster.settings 中。

任何设置更改仅影响对 .fork() 的未来调用，对已运行的工作不会有影响。

🌐 Any settings changes only affect future calls to .fork() and have no effect on workers that are already running.

通过 .setupPrimary() 无法设置的工人唯一属性是传递给 .fork() 的 env。

🌐 The only attribute of a worker that cannot be set via .setupPrimary() is the env passed to .fork().

上述默认值仅适用于第一次调用；后续调用的默认值是在调用 cluster.setupPrimary() 时的当前值。

🌐 The defaults above apply to the first call only; the defaults for later calls are the current values at the time of cluster.setupPrimary() is called.

import cluster from 'node:cluster';

cluster.setupPrimary({
  exec: 'worker.js',
  args: ['--use', 'https'],
  silent: true,
});
cluster.fork(); // https worker
cluster.setupPrimary({
  exec: 'worker.js',
  args: ['--use', 'http'],
});
cluster.fork(); // http workerconst cluster = require('node:cluster');

cluster.setupPrimary({
  exec: 'worker.js',
  args: ['--use', 'https'],
  silent: true,
});
cluster.fork(); // https worker
cluster.setupPrimary({
  exec: 'worker.js',
  args: ['--use', 'http'],
});
cluster.fork(); // http worker拷贝

这只能从主进程调用。

🌐 This can only be called from the primary process.