如何释放笔记本服务器停止后占用的端口？

Question

我正在 AWS 实例（Redhat Linux 服务器）上启动一个 jupyter notebook 服务器以通过 https 连接。在配置文件中，我知道这应该在端口 9999 上。但是，当我使用 Ctrl-C 停止并重新启动进程时，端口没有被释放，如下所示。

[user@ip-xxx-xx-xx-xxx notebook]$ [I 08:39:27.901 NotebookApp] The port 9999 is already in use, trying another random port.
[I 08:39:27.901 NotebookApp] The port 10000 is already in use, trying another random port.
[I 08:39:27.902 NotebookApp] The port 10001 is already in use, trying another random port.
[I 08:39:27.905 NotebookApp] Serving notebooks from local directory: /home/user/docs/notebook
[I 08:39:27.905 NotebookApp] 0 active kernels
[I 08:39:27.905 NotebookApp] The Jupyter Notebook is running at: https://[all ip addresses on your system]:10002/
[I 08:39:27.905 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).

顺便说一句，那些 "random ports" 在我看来不是很随意。

Answer 1

有时服务的停止命令不会return任何错误并删除进程的 pid 文件，但实际上不会终止进程本身。

您可以通过运行停止命令检查进程是否仍然运行然后

ps aux | grep -i notebook

或

netstat -tlnp | grep <portNumber>

如您所述，您可以手动终止进程，或修复停止脚本（通常为 /etc/init.d/serviceName+d）。进程未被杀死的原因通常（不总是）与执行命令的用户拥有的权限有关

如何释放笔记本服务器停止后占用的端口？

How do I release ports which are being held by a notebook server after it has been stopped?

port

ipython-notebook

jupyter

jupyter-notebook