事件：'setup'

¥Event: 'setup'

• settings <Object>

每次调用 .setupPrimary() 时触发。

¥Emitted every time .setupPrimary() is called.

settings 对象是调用 .setupPrimary() 时的 cluster.settings 对象，并且只是建议性的，因为可以在单个滴答中对 .setupPrimary() 进行多次调用。

¥The settings object is the cluster.settings object at the time .setupPrimary() was called and is advisory only, since multiple calls to .setupPrimary() can be made in a single tick.

如果准确性很重要，则使用 cluster.settings。

¥If accuracy is important, use cluster.settings.