从 zmq.error.ZMQError 中恢复:地址已在使用中 [英] Recovering from zmq.error.ZMQError: Address already in use

问题描述

我在运行与 ZMQ 的 PAIR 模式(非阻塞客户端服务器)连接时按下 Ctrl-C.后来当我尝试运行 REQ-REP(阻止客户端单服务器连接)模式时，我不断收到 Address already in use 错误.我试过用 netstat -ltnp | 运行 netstatgrep :<my port> 但没有列出任何进程.

I hit Ctrl-C while running a PAIR pattern (non-blocking client servers) connection with ZMQ. Later when I tried running the REQ-REP (blocking client single server connection) pattern, I keep getting the Address already in use error. I have tried running netstat with netstat -ltnp | grep :<my port> but that does not list any process.

那么究竟是谁在使用这个地址?

So who exactly is using this address?

还有如何优雅地关闭这样的套接字连接?

Also how does one gracefully shutdown socket connections like these?

推荐答案

问题 1:

如果你在 Linux 类型的操作系统上执行 sudo netstat -ltnp，你很可能会看到拥有端口的进程.用 kill -9 杀死它.

If you do sudo netstat -ltnp, on a Linux type operating system, you will most probably see the process owning the port. Kill it with kill -9 <pid>.

问题 2:

退出程序时，关闭套接字，然后调用 zmq_ctx_destroy().这破坏了上下文.请参阅 http://zguide.zeromq.org/page:all#toc17 了解更多信息.

When you exit the program, close your sockets and then call zmq_ctx_destroy(). This destroys the context. See http://zguide.zeromq.org/page:all#toc17 for more info.

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