我在 WSL2 实例中运行 Jupyter 笔记本时遇到了一个奇怪的问题。每次我启动一个新笔记本时，我的第一次连接localhost:8888（或localhost:XXXX任何其他端口号）都需要很长时间才能连接，例如 5-10 分钟。然而，一旦与该端口建立了一个连接，所有后续连接都会以正常速度发生。据我所知，延迟并不是专门发生在 Jupyter 服务器内的，因为服务器输出GET在等待期间没有显示任何请求：
> jupyter notebook .
[I 08:29:21.282 NotebookApp] Authentication of /metrics is OFF, since other authentication is disabled.
[W 08:29:21.729 NotebookApp] All authentication is disabled. Anyone who can connect to this server will be able to run code.
[I 08:29:21.732 NotebookApp] Serving notebooks from local directory: /home/peter/jade_poplar/code/python
[I 08:29:21.732 NotebookApp] Jupyter Notebook 6.4.0 is running at:
[I 08:29:21.732 NotebookApp] http://localhost:8888/
[I 08:29:21.732 NotebookApp] Use Control-C to …