无法获得两个Erlang节点进行通信 [英] Can't get two Erlang nodes to communicate

问题描述

无论我做什么，我都无法获得两个不同的节点进行通信.这可能是一个非常简单的问题.

No matter what I try, I can't get two different nodes to communicate. This is probably a very simple problem to solve.

我已经创建了文件.cookie.erlang，并将其放置到主目录中.然后，我打开一个终端窗口并键入以下命令:

I have created the file .cookie.erlang and I've placed it into my home directory. Then I open a terminal window and type the following commands:

erl -sname user1@pc
erlang:set_cookie(node(),cookie).

在另一个终端窗口中键入:

In another terminal window I type:

erl -sname user2@pc
erlang:set_cookie(node(),cookie).

现在，如果我在第一个终端窗口中键入以下命令:

Now if I type the following command in the first terminal window:

net_adm:ping(user2@pc).

我总是得到"false"的结果，这意味着两个节点无法相互连接.我不明白我在这里想念什么...

I always get "false" as result, meaning that the two nodes were not able to connect to each other. I don't understand what I am missing here...

推荐答案

一定要确保"pc"是计算机的 actual 主机名.如果不是，请确保您正在使用.

Definitely make sure that 'pc' is the actual hostname of your machine. If it's not, make sure you're using that.

或者，因为您使用的是sname并且两个主机都在同一台计算机上，所以您可以使用 erl -sname user1 和 erl -sname user2 摆脱困境.

Alternatively, since you're using sname and both hosts are on the same machine, you could get away with doing erl -sname user1 and erl -sname user2.

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