uWSGI + nginx for django project, error with strting uwsgi
Solution 1
unix sockets must obey to file permission schemes. So /var/run must be writable by www-data and nginx must be able to read/write /var/run/uwsgi.sock
If you are not familiar with this kind of things, you should use tcp sockets (choose a port and you are ready)
Solution 2
how set version of python for uwsgi?
Set option plugins in uwsgi settings:
[uwsgi]
...
plugins = python27
...
Admin
Updated on June 15, 2022Comments
-
Admin almost 2 years
I try to up webserver for django on nginx+uwsgi, os - debian (3.1.0-1-amd64 x86_64) nginx 1.1.8-1, uwsgi 0.9.8.3-1 configuration:
<uwsgi> <socket>/tmp/uwsgi.sock</socket> <process>1</process> <master/> <enable-threads/> <uid>33</uid> <gid>33</gid> <pidfile>/tmp/uwsgi.pid</pidfile> </uwsgi>
in file /etc/uwsgi/apps-enabled/webapp.xml nginx configuration
location / { uwsgi_pass unix:///tmp/uwsgi.sock; include uwsgi_params; uwsgi_param UWSGI_SCRIPT webapp; uwsgi_param UWSGI_CHDIR /data/web/webapp/webapp; }
all projet in /data/web/webapp/webapp/, here setting.py, urls ect. in /data/web/webapp/webapp/webapp.py
import sys, os import django.core.handlers.wsgi sys.path.insert(0, '/data/web/webapp/webapp') os.environ['DJANGO_SETTINGS_MODULE'] = 'settings' application = django.core.handlers.wsgi.WSGIHandler()
uid and gid 33 it is www-data user try run uwsgi as
root#uwsgi -s /var/run/uwsgi.sock -x /etc/uwsgi/apps-enabled/webapp.xml
[uWSGI] parsing config file /etc/uwsgi/apps-enabled/webapp.xml *** Starting uWSGI 0.9.8.3-debian (64bit) on [Wed Dec 14 21:42:02 2011] *** compiled with version: 4.6.1 on 27 July 2011 18:25:51 writing pidfile to /tmp/uwsgi.pid uWSGI running as root, you can use --uid/--gid/--chroot options setgid() to 33 setuid() to 33 your memory page size is 4096 bytes unlink(): Permission denied [socket.c line 38] bind(): Address already in use [socket.c line 70]
how permission they want? and what's the problem.. if i run uwsgi as root error is gone, and i see
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** your memory page size is 4096 bytes uwsgi socket 0 bound to UNIX address /var/run/uwsgi.sock fd 3 uwsgi socket 1 bound to UNIX address /tmp/uwsgi.sock fd 4 your server socket listen backlog is limited to 100 connections *** Operational MODE: single process *** *** no app loaded. going in full dynamic mode *** *** uWSGI is running in multiple interpreter mode *** spawned uWSGI master process (pid: 20732) spawned uWSGI worker 1 (pid: 20733, cores: 1)
but when i try to access the server, ngix returns 502 error page. And more: permission error in nginx logs:
2011/12/14 21:57:17 [crit] 20739#0: *1 connect() to unix:///tmp/uwsgi.sock failed (13: Permission denied) while connecting to upstream, client: 10.10.3.111, server: ******, request: "GET /favicon.ico HTTP/1.1", upstream: "uwsgi://unix:///tmp/uwsgi.sock:", host: "****.****.**"
if change owner of /tmp/uwsgi.sock to nginix user in runtime (www-data), he wrote other logs
[error] 20739#0: *21 upstream prematurely closed connection while reading response header from upstream,
but still error 502 (
how solving this problem? some one can help me.. really want to use nginx+uwsgi instead of apache. thanks
however, solution is near :) I use tcp socket now and more, change uwsgi configuration and installed a few more packages. was an important option --autoload. now uwsgi has configuration like this:
<uwsgi> <module>webapp</module> <socket>127.0.0.1:5080</socket> <pythonpath>/data/web/webapp/webapp</pythonpath> <autoload/> <daemonize>/var/log/uwsgi_webapp.log</daemonize> <processes>1</processes> <uid>33</uid> <gid>33</gid> <enable-threads/> <master/> <harakiri>120</harakiri> <max-requests>5000</max-requests> </uwsgi>
remains to solve other problem.. uwsgi use not main system python version >_<
option "pythonpath" found in plugin python26_plugin.so *** Starting uWSGI 0.9.8.3-debian (64bit) on [Thu Dec 15 22:52:23 2011] *** compiled with version: 4.6.1 on 27 July 2011 18:25:51 uWSGI running as root, you can use --uid/--gid/--chroot options setgid() to 33 setuid() to 33 your memory page size is 4096 bytes *** WARNING: you have enabled harakiri without post buffering. Slow upload could be rejected on post-unbuffered webservers *** uwsgi socket 0 bound to TCP address 127.0.0.1:5080 fd 4 Python version: 2.6.7 (r267:88850, Aug 3 2011, 12:02:14) [GCC 4.6.1] Python main interpreter initialized at 0xc47df0 threads support enabled your server socket listen backlog is limited to 100 connections *** Operational MODE: single process *** added /data/web/webapp/webapp/ to pythonpath. WSGI application 0 (SCRIPT_NAME=) ready on interpreter 0xc47df0 pid: 22983 (default app) *** uWSGI is running in multiple interpreter mode *** spawned uWSGI master process (pid: 22983) spawned uWSGI worker 1 (pid: 22984, cores: 1)
he use python 2.6.7 but main system version is 2.7.2 and all python modules installed for this, so a lot of errors in the log - repeated attempts to import non-existent, one of many typical error:
File "/usr/lib/python2.6/dist-packages/django/db/__init__.py", line 78, in <module> connection = connections[DEFAULT_DB_ALIAS] File "/usr/lib/python2.6/dist-packages/django/db/utils.py", line 93, in __getitem__ backend = load_backend(db['ENGINE']) File "/usr/lib/python2.6/dist-packages/django/db/utils.py", line 51, in load_backend raise ImproperlyConfigured(error_msg) django.core.exceptions.ImproperlyConfigured: 'django_mongodb_engine' isn't an available database backend. Try using django.db.backends.XXX, where XXX is one of: 'dummy', 'mysql', 'oracle', 'postgresql', 'postgresql_psycopg2', 'sqlite3' Error was: No module named django_mongodb_engine.base
so.. how set version of python for uwsgi?