jupyter notebook 仅在启动时无法检测到 conda 内核

Question

我正在尝试在启动时自动启动 jupyter 服务器。 (ec2, 亚马逊 linux)

我让 jupyter 服务器正常工作并正确加载了所有 conda 内核。

我尝试运行 jupyter 启动。（已尝试 rc.local、systemd、crontab 和所有无法加载 conda 内核且仅加载基本 python2 和 python3 内核）

我已经将其追溯到 nb_conda_kernels 无法在启动时调用 'conda'，如下所示：

Oct 30 01:07:38 ip-172-31-17-102 rc.local: [E 01:07:38.816 NotebookApp] [nb_conda_kernels] couldn't call conda:
Oct 30 01:07:38 ip-172-31-17-102 rc.local:    [Errno 2] No such file or directory: 'conda': 'conda'
Oct 30 01:07:38 ip-172-31-17-102 rc.local: [I 01:07:38.816 NotebookApp] [nb_conda_kernels] enabled, 0 kernels found
Oct 30 01:07:39 ip-172-31-17-102 rc.local: [I 01:07:39.645 NotebookApp] Loading IPython parallel extension
Oct 30 01:07:39 ip-172-31-17-102 rc.local: [I 01:07:39.701 NotebookApp] JupyterLab extension loaded from /home/ec2-user/anaconda3/lib/python3.7/site-packages/jupyterlab
Oct 30 01:07:39 ip-172-31-17-102 rc.local: [I 01:07:39.702 NotebookApp] JupyterLab application directory is /home/ec2-user/anaconda3/share/jupyter/lab
Oct 30 01:07:40 ip-172-31-17-102 rc.local: [I 01:07:40.061 NotebookApp] [nb_conda] enabled
Oct 30 01:07:40 ip-172-31-17-102 rc.local: [I 01:07:40.061 NotebookApp] Serving notebooks from local directory: /home/ec2-user/browse
Oct 30 01:07:40 ip-172-31-17-102 rc.local: [I 01:07:40.061 NotebookApp] The Jupyter Notebook is running at:
Oct 30 01:07:40 ip-172-31-17-102 rc.local: [I 01:07:40.061 NotebookApp] http://172.31.17.102:8888/
Oct 30 01:07:40 ip-172-31-17-102 rc.local: [I 01:07:40.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).

最奇怪的是，当我用“sudo ss --tulpn | grep 8888”（为正在侦听端口 8888 的 jupyter notebook 查找 pid）和“sudo kill”杀死运行ning 服务器时-9 {pid}”（杀死进程。检查我是否成功杀死它），然后我通过启动时使用的相同命令重新启动服务器，然后 jupyter 成功加载 conda 内核，如下所示：

[I 01:12:51.369 NotebookApp] [nb_conda_kernels] enabled, 22 kernels found
[I 01:12:51.612 NotebookApp] Loading IPython parallel extension
[I 01:12:51.641 NotebookApp] JupyterLab extension loaded from /home/ec2-user/anaconda3/lib/python3.7/site-packages/jupyterlab
[I 01:12:51.641 NotebookApp] JupyterLab application directory is /home/ec2-user/anaconda3/share/jupyter/lab
[I 01:12:51.791 NotebookApp] [nb_conda] enabled
[I 01:12:51.792 NotebookApp] Serving notebooks from local directory: /home/ec2-user/browse
[I 01:12:51.792 NotebookApp] The Jupyter Notebook is running at:
[I 01:12:51.792 NotebookApp] http://172.31.17.102:8888/
[I 01:12:51.792 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).

我在 Whosebug 上看到一个关于此问题的特定问题。 () 但这里的问题是，当我输入“jupyter kernelspec list”时，即使 jupyter 已经成功加载了 conda 内核，我也只会得到 python3 和 python2。

python3    /home/ec2-user/anaconda3/share/jupyter/kernels/python3
  python2    /usr/share/jupyter/kernels/python2

此外，我尝试更改 jupyter 配置文件中的 environmentspecmanager 以查看它是否解决了问题，但没有。（相同的错误日志，“无法调用 conda”）

这里有什么问题？

Answer 1

执行rc.local时，

conda尚未配置。这通常通过 .bashrc 文件完成。但是你可以尝试将它添加到 rc.local 脚本中（在启动 jupyter 之前）：

source /home/ec2-user/anaconda3/etc/profile.d/conda.sh

这里要设置conda的使用

Answer 2

谢谢你，FlyterTeller。我在 rc.local 中使用了下面的代码，而不是您显示的代码。

if [ -f "/home/ec2-user/anaconda3/etc/profile.d/conda.sh" ]; then
    . "/home/ec2-user/anaconda3/etc/profile.d/conda.sh"
    CONDA_CHANGEPS1=false /home/ec2-user/anaconda3/bin/jupyter notebook --config /home/ec2-user/.jupyter/jupyter_notebook_config.py --allow-root --no-browser
fi

但是你说得对，conda 在执行 rc.local 时没有配置。感谢您将我推向正确的方向，所以我赞成并接受您的回答！

jupyter notebook 仅在启动时无法检测到 conda 内核

jupyter notebook can't detect conda kernels only on boot

linux

amazon-ec2

conda

jupyter-notebook

anaconda3