Jupyter笔记本保持与内核的重新连接
Jupyter笔记本保持与内核的重新连接
提问于 2017-02-21 00:54:45
我可以毫无问题地打开Jupyter控制台，但当我创建一个新的笔记本时，它会一直与内核连接和断开(消息"Connecting to Kernel“/ "Connected”一直显示在右上角)。这就是Chrome的控制台输出的内容(在Firefox中也是如此)：
Untitled3.ipynb?kernel_name=python3:121 loaded custom.js
default.js:48Default extension for cell metadata editing loaded.
rawcell.js:82Raw Cell Format toolbar preset loaded.
slideshow.js:43Slideshow extension for metadata editing loaded.
menubar.js:240actions jupyter-notebook:find-and-replace does not exist, still binding it in case it will be defined later...
MenuBar.bind_events @ menubar.js:240
extension.js Failed to load resource: the server responded with a status of 404 (Not Found)
main.js:184Widgets are not available. Please install widgetsnbextension or ipywidgets 4.0
(anonymous) @ main.js:184
session.js:54Session: kernel_created (1b236a4b-902d-4b33-9118-63013be4f270)
kernel.js:456Starting WebSockets: ws://[myipaddress]:[myport]/api/kernels/682dc980-d7c6-41e0-b984-14ceb7f8e50c
kernel.js:101Kernel: kernel_connected (682dc980-d7c6-41e0-b984-14ceb7f8e50c)
kernel.js:101Kernel: kernel_disconnected (682dc980-d7c6-41e0-b984-14ceb7f8e50c)
kernel.js:559Connection lost, reconnecting in 1 seconds.
kernel.js:101Kernel: kernel_reconnecting (682dc980-d7c6-41e0-b984-14ceb7f8e50c)
kernel.js:456Starting WebSockets: ws://[myipaddress]:[myport]/api/kernels/682dc980-d7c6-41e0-b984-14ceb7f8e50c
kernel.js:101Kernel: kernel_connected (682dc980-d7c6-41e0-b984-14ceb7f8e50c)
kernel.js:101Kernel: kernel_disconnected (682dc980-d7c6-41e0-b984-14ceb7f8e50c)
kernel.js:559Connection lost, reconnecting in 1 seconds.
kernel.js:101Kernel: kernel_reconnecting (682dc980-d7c6-41e0-b984-14ceb7f8e50c)
kernel.js:456Starting WebSockets: ws://[myipaddress]:[myport]/api/kernels/682dc980-d7c6-41e0-b984-14ceb7f8e50c
kernel.js:101Kernel: kernel_connected (682dc980-d7c6-41e0-b984-14ceb7f8e50c)
kernel.js:101Kernel: kernel_disconnected (682dc980-d7c6-41e0-b984-14ceb7f8e50c)
kernel.js:559Connection lost, reconnecting in 1 seconds.
# ... more of the same, over and over ... #问题是，当我在运行Jupyter服务器(我放在家里的MacBook )的同一台机器上创建一个笔记本时，一切都运行得很好。当我从另一台计算机(我在公司使用的运行Windows的PC )创建笔记本时，就会出现问题。这是怎么回事呢？
回答 2
Stack Overflow用户
发布于 2017-06-27 15:25:42
我在nginx代理后面使用jupyter。我遇到了和你一样的问题。向下钻取后，我发现问题存在于我的nginx conf中。
将下面这行代码添加到我的nginx conf之后，它就可以工作了！
proxy_http_version 1.1；
下面是完整的nginx conf：
upstream my-notebook-workhorse {
server 127.0.0.1:8888 fail_timeout=0;
}
map $http_upgrade $connection_upgrade {
default upgrade;
'' close;
}
# let my-notebook deal with the redirection
server {
listen 80;
server_name my-notebook.wh;
server_tokens off;
root /dev/null;
# Increase this if you want to upload larger attachments
client_max_body_size 20m;
# individual nginx logs for this vhost
access_log /var/log/nginx/my-notebook_access.log;
error_log /var/log/nginx/my-notebook_error.log;
location / {
proxy_pass http://my-notebook-workhorse;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
proxy_set_header X-Forwarded_For $proxy_add_x_forwarded_for;
proxy_set_header X-NginX-Proxy true;
auth_basic "Restricted Content";
# WebSocket support
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_set_header Origin "";
proxy_read_timeout 86400;
}
}我不知道为什么会发生这种情况，因为在我遇到这个问题之前的几个月里，没有proxy_http_version 1.1;的旧版本工作得很好。
Stack Overflow用户
发布于 2017-05-16 18:38:06
我刚刚将端口从8888改为9999，问题就解决了。
使用命令
jupyter notebook --generate-config(它会指出生成的配置文件的位置)
生成一个配置文件，然后找到这一行
c.NotebookApp.port并更改端口。
您也可以在启动服务器时直接指定端口号：
jupyter notebook --port=9999页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/42350182
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