nginx+uwsgi+django, there seems to be some strange cache in uwsgi, help me

问题

This is uwsgi config:

[uwsgi]  
uid = 500
listen=200
master = true  
profiler = true 
processes = 8 
logdate = true  
socket = 127.0.0.1:8000  
module = www.wsgi  
pythonpath = /root/www/
pythonpath = /root/www/www 
pidfile = /root/www/www.pid  
daemonize = /root/www/www.log  
enable-threads = true
memory-report = true
limit-as = 6048

This is Nginx config:

server{  
    listen 80;  
    server_name 119.254.35.221;      
    location / {  
        uwsgi_pass 127.0.0.1:8000;  
        include uwsgi_params;  
    }  
}

The django works ok, but modifed pages can't be seen unless i restart uwsgi.(what's more, as i config 8 worker process, i can see the modified page when i press on ctrl+f5 for a while, seems that only certain worker can read and response the modified page, but others just shows the old one, who caches the old page? i didn't config anything about cache)

I didn't config the django, and it works well with "python manager runserver ...", but havfe this problem when working with nginx+uwsgi.

(the nginx and uwsgi are both new installation, i'm sure nothing else is configed here..)

回答1:

uwsgi does not reload your code automatically, only development server does
runserver is for debug purposes, uwsgi and nginx for production
in production you can restart uwsgi by service uwsgi restart or via init.d script
there is even better way to reload uwsg by using touch-reload

usually there is no need to cleanup .pyc files, it happens only when timestamps on files are wrong (I've seen it only couple times at my entire carieer)

回答2:

This is normal behavior. uwsgi will not re-read your code unless you restart it (it does not work like runserver when you have DEBUG=True).

If after you have updated your code, restarted uwsgi, cleared your browser cache and it still doesn't reflect your changes, then you should delete *.pyc files from your source directory.

I typically use this:

find . -name "*.pyc" -exec rm {} \;

Roughly speaking, .pyc is the "compiled" version of your code. Python will load this optimized version if it doesn't detect a change in the source. If you delete these files; then it will re-read your source files.

来源：https://stackoverflow.com/questions/12625050/nginxuwsgidjango-there-seems-to-be-some-strange-cache-in-uwsgi-help-me

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python

django

nginx

uwsgi