Node.js集群获得主PID

Question

我使用以下群集代码为我的节点应用程序分叉多个进程.

if (cluster.isMaster) {
  require('os').cpus().forEach(function () {
    cluster.fork();
  });

  cluster.on('exit', function (worker, code, signal) {
    cluster.fork();
  });
} else if (cluster.isWorker) {
  logger.log.info('Worker server started on port %d (ID: %d, PID: %d)', app.get('port'), cluster.worker.id, cluster.worker.process.pid);
}

输出是:

Thu Sep 05 2013 20:30:03 GMT-0700 (PDT) - info: Worker server started on port 3000 (ID: 1, PID: 606)
Thu Sep 05 2013 20:30:03 GMT-0700 (PDT) - info: Worker server started on port 3000 (ID: 2, PID: 607)
Thu Sep 05 2013 20:30:03 GMT-0700 (PDT) - info: Worker server started on port 3000 (ID: 5, PID: 610)
Thu Sep 05 2013 20:30:03 GMT-0700 (PDT) - info: Worker server started on port 3000 (ID: 3, PID: 608)
Thu Sep 05 2013 20:30:03 GMT-0700 (PDT) - info: Worker server started on port 3000 (ID: 4, PID: 609)
Thu Sep 05 2013 20:30:03 GMT-0700 (PDT) - info: Worker server started on port 3000 (ID: 6, PID: 611)
Thu Sep 05 2013 20:30:03 GMT-0700 (PDT) - info: Worker server started on port 3000 (ID: 8, PID: 613)
Thu Sep 05 2013 20:30:03 GMT-0700 (PDT) - info: Worker server started on port 3000 (ID: 7, PID: 612)

有8个工作进程但是当我使用pgrep检查进程时,我看到了9个

$ pgrep -l node
613 node
612 node
611 node
610 node
609 node
608 node
607 node
606 node
605 node

所以额外的一个过程必须是主过程,如何打印出主过程IP？

谢谢

我发布了另一个与此问题相关的问题,我认为对每个人来说也可能有用:

获得kill&pgrep后,Node.js集群主进程重启？

Answer 1

你可以在process.pid里面获得主进程pid if(cluster.isMaster).IP和端口是您的应用的属性,所以它们是相同的.