Following a bunch of tutorials, I wrote my first django app and then decided to deploy it on a linode server. Following their tutorial, I only got so far. The best I could tell, that was based on an earlier version of Ubunto and I tried some other things, including the uwsgi quickstart tutorial.
I got far enough that the command 'python manage.py runserver' would serve up my site and wanted to move on to using uwsgi to do the same.
It seems as though there is some environment variable missing. When I try to start uwsgi from the command line with:
uwsgi --http :8000 --module dynamicefl.wsgi
I get the following:
*** Starting uWSGI 2.0.15 (64bit) on [Fri Aug 11 19:37:04 2017] ***
compiled with version: 6.3.0 20170406 on 10 August 2017 23:41:13
os: Linux-4.9.36-x86_64-linode85 #1 SMP Thu Jul 6 15:31:23 UTC 2017
nodename: roosevelt
machine: x86_64
clock source: unix
detected number of CPU cores: 1
current working directory: /home/django/worksheets/dynamic-efl
detected binary path: /usr/local/bin/uwsgi
!!! no internal routing support, rebuild with pcre support !!!
*** WARNING: you are running uWSGI without its master process manager ***
your processes number limit is 3941
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uWSGI http bound on :8000 fd 4
spawned uWSGI http 1 (pid: 5998)
uwsgi socket 0 bound to TCP address 127.0.0.1:43637 (port auto-assigned) fd 3
Python version: 2.7.13 (default, Jan 19 2017, 14:48:08) [GCC 6.3.0 20170118]
*** Python threads support is disabled. You can enable it with --enable-threads ***
Python main interpreter initialized at 0x562bdad6fda0
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 72760 bytes (71 KB) for 1 cores
*** Operational MODE: single process ***
Traceback (most recent call last):
File "./dynamicefl/wsgi.py", line 12, in <module>
from django.core.wsgi import get_wsgi_application
ImportError: No module named django.core.wsgi
unable to load app 0 (mountpoint='') (callable not found or import error)
*** no app loaded. going in full dynamic mode ***
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI worker 1 (and the only) (pid: 5997, cores: 1)
A lot of the tutorials emphasize putting the path to the virtual environment in the .ini file, and I did (double checking with 'env' that I had the virtual environment right.) Here is the .ini file I'm working with
[uwsgi]
home = /home/django/Env/worksheets
chdir = /home/django/worksheets/dynamic-efl/dynamicefl
module = dynamicefl.wsgi::application
uid = www-data
gid = www-data
socket = localhost:9191
chmod-socket = 644
chown-socket = www-data
processes = 4
threads = 2
logto = /var/log/uwsgi.log
I have experimented with changing the chdir command some, as I'm not sure exactly where it should be pointing, but regarless of where it points that results in a similar line in uwsgi.log:
-- no python application found, check your startup logs for errors ---
(Fun fact: I haven't been able to find reference to uwsgi startup logs)
If I go to the site in my web browser, I get an 'Internal Server Error' message.
I don't think that anything is getting as far an nginx, but I can include the .conf file and error logs, too, if that's helpful.
I know that there are a log of similar questions, but I've looked at them and they're not helping me. (Which is not to say that they don't contain the answer.)
The django docs helped me out here. It turns out that my reference to the module was apparently wrong. I had a colon too many in the reference to the module. The corrected .ini reads:
module = dynamicefl.wsgi:application
What helped was resolving to battle it out until I could serve the site purely from uwsgi, so that I could stop restarting services.
Related
I am trying to run one sample application with uWSGI file directive using two files for it testService.ini(config file) & testService.py (application file).
**testService.ini**
[uwsgi]
wsgi-file = '/opt/testService/testService.py'
callable = app
**testService.py**
def application(env, start_response):
start_response('200 OK', [('Content-Type','text/html')])
return [b"Hello World"]
running the above file using : uwsgi --http :9090 --wsgi-file testService.ini
Output:
Starting uWSGI 2.0.17 (64bit) on [Thu Jun 21 15:52:33 2018]
compiled with version: 5.4.0 20160609 on 14 June 2018 10:09:32
os: Linux-4.13.0-45-generic #50~16.04.1-Ubuntu SMP Wed May 30 11:18:27 UTC 2018
nodename: ubuntu
machine: x86_64
clock source: unix
detected number of CPU cores: 8
current working directory: /opt/testService
detected binary path: /home/jmallick/.local/bin/uwsgi
!!! no internal routing support, rebuild with pcre support !!!
*** WARNING: you are running uWSGI without its master process manager ***
your processes number limit is 15481
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uWSGI http bound on :9090 fd 4
spawned uWSGI http 1 (pid: 7848)
uwsgi socket 0 bound to TCP address 127.0.0.1:45781 (port auto-assigned) fd 3
Python version: 2.7.12 (default, Dec 4 2017, 14:50:18) [GCC 5.4.0 20160609]
Python threads support is disabled. You can enable it with --enable-threads
Python main interpreter initialized at 0x824400
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 72920 bytes (71 KB) for 1 cores
Operational MODE: single process
File "testService.ini", line 2
**wsgi-file = '/opt/testService/testService.py'
SyntaxError: can't assign to operator
failed to compile python file testService.ini**
unable to load app 0 (mountpoint='') (callable not found or import error)
no app loaded. going in full dynamic mode
uWSGI is running in multiple interpreter mode
spawned uWSGI worker 1 (and the only) (pid: 7847, cores: 1)
And over the browser I am getting "Internal Server Error". Can someone help me understanding what I am doing wrong here ?
I'm trying to run a Flask application using a ubuntu 12.04 server with nginx and uWSGI however after starting the server, specifying the wsgi.ini file and then starting nginx, I try to access the page but I get a 502 bad gateway error with nginx. I know that it is an issue with the flask application and uWSGI. I checked the uWSGI logs and found this:
*** Starting uWSGI 2.0.11.1 (64bit) on [Thu Sep 17 19:38:03 2015] ***
compiled with version: 4.8.4 on 17 September 2015 15:58:04
os: Linux-3.13.0-48-generic #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015
nodename: ip-172-31-30-153
machine: x86_64
clock source: unix
detected number of CPU cores: 1
current working directory: /home/ubuntu/myapp
writing pidfile to /home/ubuntu/myapp/myapp.pid
detected binary path: /usr/local/bin/uwsgi
!!! no internal routing support, rebuild with pcre support !!!
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) ***
*** WARNING: you are running uWSGI without its master process manager ***
your processes number limit is 7862
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi socket 0 bound to TCP address 127.0.0.1:5000 fd 3
Python version: 2.7.6 (default, Jun 22 2015, 18:01:27) [GCC 4.8.2]
Set PythonHome to /home/ubuntu/myapp
ImportError: No module named site
I found this question's top answer but saw received the same error. If it is something to do with PYTHONHOME, I'm following this guide and it states:
The $PYTHONPATH variable seems to get unset randomly, and causes
errors for later steps. To avoid this, add the following line to the
top of your ~/.bashrc file:
export
PYTHONPATH='/usr/lib/python2.7:/usr/lib/python2.7/plat-x86_64-linux-gnu:/usr/lib/python2.7/lib-tk:/usr/lib/python2.7/lib-old:/usr/lib/python2.7/lib-dynload:/usr/local/lib/python2.7/dist-packages:/usr/lib/python2.7/dist-packages:/usr/lib/python2.7/dist-packages/PILcompat'
So what could be the issue? Is it PYTHONHOME or another factor affecting it? Thanks.
Edit:
My uwsgi.ini:
[uwsgi]
home = /home/ubuntu/myapp
wsgi-file = %(home)/run.py
socket = 127.0.0.1:5000
callable = app
module = app
pythonpath = %(home)
daemonize = %(home)/myapp.log
pidfile = %(home)/myapp.pid
To run it, I use uwsgi uwsgi.ini.
I've tried some uwsgi tutorials but can't get a simple python script to run in my browser.
Ive read through this (http://uwsgi-docs.readthedocs.org/en/latest/WSGIquickstart.html) and this (https://www.digitalocean.com/community/articles/how-to-deploy-python-wsgi-applications-using-uwsgi-web-server-with-nginx) and others, but for some reason can't get a simple uwsgi app running. I am currently not going through a web server, just uwsgi by itself.
I have the following wsgi.py:
def application(env, start_response):
start_response('200 OK', [('Content-Type', 'text/html')])
return ["Hello!"]
and I run:
uwsgi --socket 127.0.0.1:8080 --chdir /my/program/path --pp .. -w wsgi
which produces the following output (looks promising):
*** Starting uWSGI 2.0.3 (64bit) on [Mon Apr 14 12:51:32 2014] ***
compiled with version: 4.6.3 20120306 (Red Hat 4.6.3-2) on 14 April 2014 12:01:33
os: Linux-3.1.0-7.fc16.x86_64 #1 SMP Tue Nov 1 21:10:48 UTC 2011
nodename: ip-10-252-98-215
machine: x86_64
clock source: unix
detected number of CPU cores: 1
current working directory: /usr/oai/icscada/www
detected binary path: /usr/bin/uwsgi
!!! no internal routing support, rebuild with pcre support !!!
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) ***
*** WARNING: you are running uWSGI without its master process manager ***
your processes number limit is 1024
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi socket 0 bound to TCP address 127.0.0.1:8080 fd 3
Python version: 2.7.3 (default, Jul 24 2012, 11:41:40) [GCC 4.6.3 20120306 (Red Hat 4.6.3-2)]
*** Python threads support is disabled. You can enable it with --enable-threads ***
Python main interpreter initialized at 0x2504ee0
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 72752 bytes (71 KB) for 1 cores
*** Operational MODE: single process ***
added ../ to pythonpath.
WSGI app 0 (mountpoint='') ready in 0 seconds on interpreter 0x2504ee0 pid: 21702 (default app)
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI worker 1 (and the only) (pid: 21702, cores: 1)
but when I go to port 8080 from my browser I get a "could not connect" error. Port 8080 is open and has been tested.
I've also tried the following wsgi.py:
import os
os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings'
import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()
exactly the same results
If you want to run uWSGI without a web server in front of it, use http option instead of socket. See Native HTTP support.
Also, use 0.0.0.0:80 as an address if you are accessing from a remote machine.
I want to be able to create dynamic graphs within my Flask application. I am running this application within a virtual environment on a Linux box.
I looked around for different libraries that would help me with this, and identified Pygal as the one which I would like to use.
So, I activated my virtual environment using source venv/bin/activate and installed using pip install pygal. Everything installed correctly and I can import it perfectly in using the regular Python interface.
However, when I put import pygal into my Flask application and run the application, I get the following error in the logs.
Traceback (most recent call last):
File "/usr/share/nginx/www/mydir/run.py", line 2, in <module>
from app import app
File "/usr/share/nginx/www/mydir/app/__init__.py", line 23, in <module>
from app import views, models
File "/usr/share/nginx/www/mydir/views.py", line 9, in <module>
import datetime, locale, pygal
ImportError: No module named pygal
Does anyone know how I can resolve this?
Many thanks.
-- EDIT --
RE: Sean Vieira
Results of adding from sys import path; print(path) to my run script:
*** Starting uWSGI 1.9.20 (32bit) on [Tue Feb 25 14:55:16 2014] ***
compiled with version: 4.6.3 on 04 December 2013 05:11:40
os: Linux-3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 15:31:16 UTC 2013
nodename: **hidden**
machine: i686
clock source: unix
detected number of CPU cores: 1
current working directory: /etc/uwsgi/vassals
detected binary path: /usr/share/nginx/www/mydir/venv/bin/uwsgi
!!! no internal routing support, rebuild with pcre support !!!
your processes number limit is 3840
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi socket 0 bound to UNIX address /usr/share/nginx/www/mydir/mydir_uwsgi.sock fd 3
Python version: 2.7.3 (default, Sep 26 2013, 20:26:19) [GCC 4.6.3]
Set PythonHome to /usr/share/nginx/www/mydir/venv
*** Python threads support is disabled. You can enable it with --enable-threads ***
Python main interpreter initialized at 0x93e80a8
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 169864 bytes (165 KB) for 1 cores
*** Operational MODE: single process ***
added /usr/share/nginx/www/mydir/ to pythonpath.
['/usr/share/nginx/www/mydir/', '.', '', '/usr/share/nginx/www/mydir/venv/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg', '/usr/share/nginx/www/mydir/venv/lib/python2.7/site-packages/pip-1.1-py2.7.egg', '/usr/share/nginx/www/mydir/venv/lib/python2.7', '/usr/share/nginx/www/mydir/venv/lib/python2.7/plat-linux2', '/usr/share/nginx/www/mydir/venv/lib/python2.7/lib-tk', '/usr/share/nginx/www/mydir/venv/lib/python2.7/lib-old', '/usr/share/nginx/www/mydir/venv/lib/python2.7/lib-dynload', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/share/nginx/www/mydir/venv/lib/python2.7/site-packages']
WSGI app 0 (mountpoint='') ready in 1 seconds on interpreter 0x93e80a8 pid: 20964 (default app)
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI master process (pid: 20964)
spawned uWSGI worker 1 (pid: 20981, cores: 1)
Issue resolved.
I had to add the path to the package into the sys.path as described in an answer for this question. As I couldn't get Pygal to install within my virtual environment for some reason.
I am trying to run my sample django application using uWSGI and nginx. But I am getting import error, no module named py. I am not sure where should I add the python path.
I am running with the following command.
sudo uwsgi --socket mysite.socket --module wsgi.py --chmod-socket=666.
I even tried passing path in the parameter --pythonpath, still the same error.
This is how my wsgi.py looks like
enter code here
import os
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()
When I try running, I get the following messages
ubuntu#ubuntu1204desktopi386:/usr/local/lib/python2.7/site-packages/mysite/mysite
$ sudo uwsgi --socket mysite.socket --module wsgi.py --chmod-socket=666
*** Starting uWSGI 1.9.18.1 (32bit) on [Mon Oct 14 13:15:19 2013] ***
compiled with version: 4.6.3 on 13 October 2013 02:53:51
os: Linux-3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:15:33 UTC 2013
nodename: ubuntu1204desktopi386
machine: i686
clock source: unix
pcre jit disabled
detected number of CPU cores: 1
current working directory: /usr/local/lib/python2.7/site-packages/mysite/mysite
detected binary path: /usr/local/bin/uwsgi
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) ***
*** WARNING: you are running uWSGI without its master process manager ***
your processes number limit is 3846
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi socket 0 bound to UNIX address mysite.socket fd 3
Python version: 2.7.3 (default, Sep 26 2013, 20:26:19) [GCC 4.6.3]
*** Python threads support is disabled. You can enable it with --enable-threads ***
Python main interpreter initialized at 0x9644d68
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 64024 bytes (62 KB) for 1 cores
*** Operational MODE: single process ***
ImportError: No module named py
unable to load app 0 (mountpoint='') (callable not found or import error)
*** no app loaded. going in full dynamic mode ***
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI worker 1 (and the only) (pid: 2311, cores: 1)
The --module argument is presumably meant to be a Python module, not a file. So you probably just need --module=wsgi.
i guess you can also use , --wsgi-file wsgi.py like this
$ uwsgi --socket 127.0.0.1:8000 --wsgi-file my_proj/wsgi.py
Make sure you run command from same folder
If python manage.py runserver 0.0.0.0:8024 can work well, then
This also can work(run it on the same directory as above command):
uwsgi --http :8024 --module mysite.wsgi
mysite is the name of this django project
uwsgi version is 2.0.14;
django version is 1.10.
ref: https://uwsgi-docs.readthedocs.io/en/latest/tutorials/Django_and_nginx.html