事件:'online'

\Event: 'online'

类似于 cluster.on('online') 事件,但特定于此工作进程。

\Similar to the cluster.on('online') event, but specific to this worker.

cluster.fork().on('online', () => {
 // Worker is online
}); 拷贝

它不会在工作进程中触发。

\It is not emitted in the worker.