如何保留共享节点集群中所有节点进程的变量？ [英] how to keep variables that share all node processes in node cluster?

问题描述

似乎所有节点woker进程都在运行，就像它正在执行同一应用程序的新副本一样。但是希望保留节点集群中所有节点工作者（子进程）共享的一些变量。有一个简单的方法吗？

It seems like all the node woker processes are working as if it is executing a new copy of the same application. But would like to keep some variables that are shared by all node workers (child processes) in node cluster. Is there a simple way to do this?

推荐答案

所有工作进程确实是应用程序的新副本。每个worker都是使用child_process.spawn创建的全功能进程。
所以不，他们不共享变量。这可能是最好的方式。
如果您想在工作进程（通常是会话）之间共享信息，您应该考虑将这些信息存储在数据库中。

All worker processes are indeed new copies of your application. Each worker is a full featured process created with child_process.spawn. So no, they don't share variables. And it's probably best this way. If you want to share information between worker processes (typically sessions) you should look into storing these information in a database.

如果您准备好了从节点开始，您可以使用 dnode 之类的工具让您的工作人员向主进程请求数据。

If you're ready to go node all the way, you could use something like dnode to have your workers ask the master process for data.

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