UWSGI on Dapeng Zhang

supervisor + uwsgi + flask

Fri, 04 Jul 2025 11:48:04 +0000

supervisor启动flask项目中，配置了uwsgi，即通过supervisor启动uwsgi，uwsgi再启动flask项目
这个过程中uwsgi是个坑

<uwsgi>
 <chdir>/relativeProjectPath</chdir>
 <module>wsgi_handler</module>
 <socket>/tmp/walkerfree-uwsgi.sock</socket> 
 <daemonize>/tmp/uwsgi.walkerfree.log</daemonize>
 <master>4</master>
 <chmod-socket>666</chmod-socket>
 <enable-threads />
 <processes>4</processes>
 <harakiri>30</harakiri>
 <workers>6</workers>
 <memory-report />
 <vacuum/>
</uwsgi>

这个是我的初始配置文件，如果单独使用uwsgi启动是没有问题的，但是放在supervisor就有问题，会启动很多个uwsgi进程，而且supersior也会报错
我见到的错误如下几种
1】ERROR (spawn error)
2】BACKOFF Exited too quickly (process log may have details)

先给下最终的uwsgi配置方案,如下

<uwsgi>
 <chdir>relativeProjectPath</chdir>
 <module>wsgi_handler</module>
 <socket>/tmp/walkerfree_uwsgi.sock</socket> 
 <logto>/tmp/walkerfree_uwsgi.log</logto>
 <chmod-socket>666</chmod-socket>
 <enable-threads />
 <processes>1</processes>
 <harakiri>30</harakiri>
 <memory-report />
 <vacuum/>
</uwsgi>

具体有几个坑吧，我试了两种，具体有一下几个方法
第一个:
修改daemonize为logto
第二个:
去掉master【这项可以不用去掉，如果不起作用可以试试】
去掉workers【这项可以不用去掉，如果不起作用可以试试】
修改processes为1

supervisor中项目的配置如下

[program:walkerfree]
# http://supervisord.org/configuration.html#program-x-section-example
command=/projectPath/env/bin/uwsgi -x /projectPath/uwsgi.xml
autostart=true
autorestart=true
stdout_logfile=/projectPath/supervisor/out.log
stderr_logfile=/projectPath/supervisor/err.log

Flask + uwsgi 在Nginx服务器上部署

Mon, 30 Jun 2025 14:30:51 +0000

Nginx配置如下：

server {
 listen 80; ## listen for ipv4; this line is default and implied
 #listen [::]:80 default ipv6only=on; ## listen for ipv6

 server_name flask.blog.gowhich.dev;

 location / {
 include uwsgi_params;
 uwsgi_pass 0.0.0.0:3032;
 }
}

uwsgi 【uwsgi.xml】配置如下：

<uwsgi>
 <chdir>/xxx/xxx/python/python_project/flask_blog_small_1</chdir>
 <module>flask_blog</module>
 <callable>app</callable>
 <socket>0.0.0.0:3032</socket> 
 <daemonize>/var/log/uwsgi.flask.blog.log</daemonize>
 <master/>
 <processes>4</processes>
 <memory-report/>
</uwsgi>

启动uwsgi和nginx便可完成部署;

这里的端口号只要保证与uwsgi的端口号一直就可以，不用考虑flask自己运行的脚本

Django 执行 uwsgi进行自动删除进程id并进行重启防止多个进行导致服务器挂掉

Fri, 20 Jun 2025 14:13:23 +0000

django 执行 uwsgi进行自动删除进程id并进行重启防止多个进行导致服务器挂掉

最近使用django+uwsgi+虚拟机（ubuntu），每次进行uwsgi重启的时候都会增加一个进程的，导致自己的mysql无意间挂掉了，莫名其妙，结果才发现，有大量的uwsgi的进程，但是每次启动的时候都去删除，手动肯定很麻烦，于是自己就google后，写了一个自己的脚本。

脚本如下，仅供参考

#!/bin/sh
NAME="walkerfree"
if [ ! -n "$NAME" ];then
 echo "no arguments"
 exit;
fi

echo $NAME
ID=`ps -ef | grep "$NAME" | grep -v "$0" | grep -v "grep" | awk '{print $2}'`
echo $ID
echo "################################################"
for id in $ID
do
kill -9 $id
echo "kill $id"
done
echo "################################################"
uwsgi --ini /usr/local/etc/uwsgi/walkerfree-uwsgi.ini

CentOS搭建使用uwsgi+nginx 配置django

Fri, 20 Jun 2025 11:07:34 +0000

记录这篇文章的前提是，uwsgi的环境，nginx的环境和django框架都已经搭建完毕了。不会的自己可以去google

1，项目创建

sudo django-admin.py startproject walkerfree

2,配置nginx server

server
 {
 listen 80;
 server_name www.walkerfree.com;
 index index.html index.htm default.html default.htm;
 root /home/wwwroot/walkerfree/walkerfree;

 access_log /home/wwwlogs/www.walkerfree.access.log;
 error_log /home/wwwlogs/www.walkerfree.error.log;

 location / {
 include uwsgi_params;
 uwsgi_pass unix://tmp/walkerfree.socket;
 }

 location ^~ /static/ {
 root /home/wwwroot/walkerfree/;
 }

 location ~ ^.+\.(gif|jpg|png|ico|jpeg)$ {
 expires 3d;
 }

 location ~ ^.+\.(css|js)$ {
 expires 12h;
 }
 }

3,配置项目的uwsgi启动设置

[uwsgi]
socket = /tmp/walkerfree.socket
#http=127.0.0.1:9090
chdir=/home/wwwroot/walkerfree
module=walkerfree.wsgi
master=True
pidfile=/tmp/uwsgi.pid
vacuum=True
max-requests=5000
daemonize=/home/wwwlogs/walkerfree-uwsgi.log

4，启动uwsgi，启动nginx(root角色)

nginx -s reload
uwsgi --ini /usr/local/etc/uwsgi/walkerfree-uwsgi.ini

5,启动成功

CentOS下安装uWSGI

Thu, 19 Jun 2025 13:55:10 +0000

第一步：首先是下载文件：

下载地址

http://projects.unbit.it/downloads/

这里面有你自己想要的文件版本

第二步：执行两条命令

yum update
yum install python python-devel libxml2 libxml2-devel python-setuptools zlib-devel wget openssl-devel pcre pcre-devel sudo gcc make autoconf automake

第三步：解压安装

tar -zxvf uwsgi-0.9.6.5.tar.gz
mv uwsgi-0.9.6.5/ uwsgi/
cd uwsgi/
sudo python setup.py build
make

第四步：将安装成功的uwsgi文件copy一份到自己使用bin目录下，我的是copy到了/usr/local/bin目录

第五步：测试是否安装成功

uwsgi --help

会打印出类似下面的信息

Usage: /usr/local/bin/uwsgi [options...]
 -s|--socket bind to the specified UNIX/TCP socket using default protocol
 -s|--uwsgi-socket bind to the specified UNIX/TCP socket using uwsgi protocol
 --http-socket bind to the specified UNIX/TCP socket using HTTP protocol
 --http-socket-modifier1 force the specified modifier1 when using HTTP protocol
 --http-socket-modifier2 force the specified modifier2 when using HTTP protocol
 --fastcgi-socket bind to the specified UNIX/TCP socket using FastCGI protocol
 --fastcgi-nph-socket bind to the specified UNIX/TCP socket using FastCGI protocol (nph mode)
 --fastcgi-modifier1 force the specified modifier1 when using FastCGI protocol
 --fastcgi-modifier2 force the specified modifier2 when using FastCGI protocol
 --scgi-socket bind to the specified UNIX/TCP socket using SCGI protocol
 --scgi-nph-socket bind to the specified UNIX/TCP socket using SCGI protocol (nph mode)
 --scgi-modifier1 force the specified modifier1 when using SCGI protocol
 --scgi-modifier2 force the specified modifier2 when using SCGI protocol
 --protocol force the specified protocol for default sockets
 --socket-protocol force the specified protocol for default sockets
 --shared-socket create a shared sacket for advanced jailing or ipc
 --undeferred-shared-socket create a shared sacket for advanced jailing or ipc (undeferred mode)
 -p|--processes spawn the specified number of workers/processes
 -p|--workers spawn the specified number of workers/processes
--More--

安装成功

uWSGI启动和停止脚本

Thu, 12 Jun 2025 11:46:37 +0000

一晚上写的shell的脚本

uwsgi启动和停止脚本（代码如下）：

#!/bin/bash
if [ ! -n "$1" ]
then
 echo "Usages: sh uwsgiserver.sh [start|stop|restart]"
 exit 0
fi

if [ $1 = start ]
then
 psid=`ps aux | grep "uwsgi" | grep -v "grep" | wc -l`
 if [ $psid -gt 4 ]
 then
 echo "uwsgi is running!"
 exit 0
 else
 uwsgi /etc/uwsgi.ini
 echo "Start uwsgi service [OK]"
 fi
 

elif [ $1 = stop ];then
 killall -9 uwsgi
 echo "Stop uwsgi service [OK]"
elif [ $1 = restart ];then
 killall -9 uwsgi
 /usr/bin/uwsgi --ini /etc/uwsgi.ini
 echo "Restart uwsgi service [OK]"

else
 echo "Usages: sh uwsgiserver.sh [start|stop|restart]"
fi