> On 14 Jun 2018, at 6:06 pm, Rajeev Jain <[email protected]> wrote:
>
> Enabling WSGI on Apache2/Ubuntu16.04 is a very popular configuration. It
> should not be this difficult.
It was complicated by starting out with trying to use Anaconda Python. That has
confused things along the way.
> What python version do you want me to use?
Since there is a system package for Python 3.6, use it.
> Where do you want it installed?
You already have it installed.
> Please tell me precisely what steps to follow to get this running?
I already explained the steps.
Since though Python 3.6 does appear to be available as a system package, since
you are having trouble with using pip install method, see if there is also a
system Python 3.6 package for mod_wsgi.
Disable the mod_wsgi module using:
a2dismod wsgi
Make a copy of the wsgi.load file just in case need it later. Then remove the
wsgi.load file.
For good measure make sure you uninstall mod_wsgi for Python 2 in case it is
still installed.
apt-get uninstall libapache2-mod-wsgi
Ensure you remove any stuff you put in /usr/lib/apache2/modules previously for
mod_wsgi:
-rwxr-xr-x 1 root root 974744 Jun 13 14:45
mod_wsgi-py36.cpython-36m-x86_64-linux-gnu.so*
lrwxrwxrwx 1 root root 45 Jun 13 14:47 mod_wsgi.so ->
mod_wsgi-py36.cpython-36m-x86_64-linux-gnu.so*
-rw-r--r-- 1 root root 207952 Jan 25 2016 mod_wsgi.so-3.5
Then run:
apt-get install libapache2-mod-wsgi-py3
This should install mod_wsgi for Python 3 using system package.
Run ldd on the mod_wsgi module in /usr/lib/apache2/modules/ to make sure what
Python version it is linking to.
Enable mod_wsgi.
a2enmod wsgi
This has taken you back to stock standard system packages.
Check that wsgi.conf still has:
WSGIRestrictEmbedded on
Everything in virtualhost.conf should be same as what I told you to use
previously. Remember my follow comment about setting python-path as well as
python-home.
Graham
> Please send me the following 2 files correctly and fully populated:
>
> - wsgi.conf
> - virtualhost.conf
>
> I'll revisit this in the morning.
>
> thanks,
> —Rajeev
>
>
> On Jun 14, 2018, at 12:12 AM, Graham Dumpleton <[email protected]
> <mailto:[email protected]>> wrote:
>
> Check your wsgi.load contents is correct. Ie., current output of running:
>
> mod_wsgi-express module-config
>
> for version installed in system Python 3.6.
>
> Check that mods-enabled is symlink to it and not copy with wrong value.
>
> The error indicates module wasn't loaded.
>
>> On 14 Jun 2018, at 5:09 pm, 'Rajeev Jain' via modwsgi
>> <[email protected] <mailto:[email protected]>> wrote:
>>
>> did that and tried to restart the server. getting an error:
>>
>> sudo service apache2 restart
>> Job for apache2.service failed because the control process exited with error
>> code. See "systemctl status apache2.service" and "journalctl -xe" for
>> details.
>> rajeev@cubi-ubuntu:/var/www/FlaskApp/FlaskApp$ systemctl status
>> apache2.service
>> ● apache2.service - LSB: Apache2 web server
>> Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
>> Drop-In: /lib/systemd/system/apache2.service.d
>> └─apache2-systemd.conf
>> Active: failed (Result: exit-code) since Thu 2018-06-14 00:03:05 PDT; 8s
>> ago
>> Docs: man:systemd-sysv-generator(8)
>> Process: 5405 ExecStop=/etc/init.d/apache2 stop (code=exited,
>> status=0/SUCCESS)
>> Process: 5531 ExecStart=/etc/init.d/apache2 start (code=exited,
>> status=1/FAILURE)
>>
>> Jun 14 00:03:05 cubi-ubuntu apache2[5531]: * The apache2 configtest failed.
>> Jun 14 00:03:05 cubi-ubuntu apache2[5531]: Output of config test was:
>> Jun 14 00:03:05 cubi-ubuntu apache2[5531]: AH00526: Syntax error on line 5
>> of /etc/apache2/sites-enabled/FlaskApp.conf:
>> Jun 14 00:03:05 cubi-ubuntu apache2[5531]: Invalid command
>> 'WSGIDaemonProcess', perhaps misspelled or defined by a module not included
>> in the server configuration
>> Jun 14 00:03:05 cubi-ubuntu apache2[5531]: Action 'configtest' failed.
>> Jun 14 00:03:05 cubi-ubuntu apache2[5531]: The Apache error log may have
>> more information.
>> Jun 14 00:03:05 cubi-ubuntu systemd[1]: apache2.service: Control process
>> exited, code=exited status=1
>> Jun 14 00:03:05 cubi-ubuntu systemd[1]: Failed to start LSB: Apache2 web
>> server.
>> Jun 14 00:03:05 cubi-ubuntu systemd[1]: apache2.service: Unit entered failed
>> state.
>> Jun 14 00:03:05 cubi-ubuntu systemd[1]: apache2.service: Failed with result
>> 'exit-code’.
>>
>>
>> /etc/apache2/sites-available$ cat FlaskApp.conf
>> <VirtualHost *:83>
>> ServerName flaskapp.com <http://flaskapp.com/>
>>
>> WSGIDaemonProcess flaskapp.com <http://flaskapp.com/> python-home=/usr
>> WSGIScriptAlias / /var/www/FlaskApp/flaskapp.wsgi
>> process-group=flaskapp.com <http://flaskapp.com/> application-group=%{GLOBAL}
>>
>> <Directory /var/www/FlaskApp/>
>> <Files flaskapp.wsgi>
>> Require all granted
>> </Files>
>> </Directory>
>> </VirtualHost>
>>
>>
>> Do you see anything wrong?
>>
>> —Rajeev
>>
>>
>> On Jun 13, 2018, at 11:52 PM, Graham Dumpleton <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Do:
>>
>> pip uninstall mod_wsgi
>>
>> Repeat until says not installed.
>>
>> Then reinstall it.
>>
>> Run 'ldd' on the mod_wsgi .so file that is built to see what Python shared
>> library it is finding.
>>
>> The installed version is possibly compiled against Anaconda Python somehow.
>>
>> Also do a complete Apache stop and start, rather than reload. There is also
>> a chance the Anaconda Python library hasn't unloaded from Apache properly.
>>
>> Graham
>>
>>> On 14 Jun 2018, at 4:28 pm, Rajeev Jain <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>> here is updated flask.wsgi
>>>
>>>
>>> here is error.log
>>> [Wed Jun 13 23:23:03.445837 2018] [wsgi:error] [pid 4758]
>>> ModuleNotFoundError: No module named 'math'
>>> [Wed Jun 13 23:23:15.854525 2018] [wsgi:error] [pid 4758] VERSION 3.6.5
>>> |Anaconda, Inc.| (default, Apr 29 2018, 16:17:00)
>>> [Wed Jun 13 23:23:15.854556 2018] [wsgi:error] [pid 4758] [GCC 7.2.0]
>>> [Wed Jun 13 23:23:15.854563 2018] [wsgi:error] [pid 4758]
>>> [Wed Jun 13 23:23:15.854581 2018] [wsgi:error] [pid 4758] PREFIX /usr
>>> [Wed Jun 13 23:23:15.854599 2018] [wsgi:error] [pid 4758] PATH
>>> ['/var/www/FlaskApp/', '/var/www/FlaskApp/', '/var/www/FlaskApp',
>>> '/usr/lib/python36.zip', '/usr/lib/python3.6',
>>> '/usr/lib/python3.6/lib-dynload', '/usr/local/lib/python3.6/dist-packages',
>>> '/usr/lib/python3/dist-packages']
>>> [Wed Jun 13 23:23:15.856916 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] mod_wsgi (pid=4758): Failed to exec Python script file
>>> '/var/www/FlaskApp/flaskapp.wsgi'.
>>> [Wed Jun 13 23:23:15.856949 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] mod_wsgi (pid=4758): Exception occurred processing WSGI
>>> script '/var/www/FlaskApp/flaskapp.wsgi'.
>>> [Wed Jun 13 23:23:15.857057 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] Traceback (most recent call last):
>>> [Wed Jun 13 23:23:15.857091 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] File "/var/www/FlaskApp/flaskapp.wsgi", line 11, in
>>> <module>
>>> [Wed Jun 13 23:23:15.857095 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] from FlaskApp import app as application
>>> [Wed Jun 13 23:23:15.857100 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] File "/var/www/FlaskApp/FlaskApp/__init__.py", line 2,
>>> in <module>
>>> [Wed Jun 13 23:23:15.857103 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] from flask import Flask
>>> [Wed Jun 13 23:23:15.857108 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] File
>>> "/usr/local/lib/python3.6/dist-packages/flask/__init__.py", line 17, in
>>> <module>
>>> [Wed Jun 13 23:23:15.857110 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] from werkzeug.exceptions import abort
>>> [Wed Jun 13 23:23:15.857115 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] File
>>> "/usr/local/lib/python3.6/dist-packages/werkzeug/__init__.py", line 151, in
>>> <module>
>>> [Wed Jun 13 23:23:15.857117 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] __import__('werkzeug.exceptions')
>>> [Wed Jun 13 23:23:15.857122 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] File
>>> "/usr/local/lib/python3.6/dist-packages/werkzeug/exceptions.py", line 67,
>>> in <module>
>>> [Wed Jun 13 23:23:15.857124 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] from werkzeug._internal import _get_environ
>>> [Wed Jun 13 23:23:15.857129 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] File
>>> "/usr/local/lib/python3.6/dist-packages/werkzeug/_internal.py", line 15, in
>>> <module>
>>> [Wed Jun 13 23:23:15.857131 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] from datetime import datetime, date
>>> [Wed Jun 13 23:23:15.857135 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] File "/usr/lib/python3.6/datetime.py", line 8, in
>>> <module>
>>> [Wed Jun 13 23:23:15.857138 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] import math as _math
>>> [Wed Jun 13 23:23:15.857150 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57696] ModuleNotFoundError: No module named 'math'
>>> [Wed Jun 13 23:23:30.077689 2018] [wsgi:error] [pid 4758] VERSION 3.6.5
>>> |Anaconda, Inc.| (default, Apr 29 2018, 16:17:00)
>>> [Wed Jun 13 23:23:30.077714 2018] [wsgi:error] [pid 4758] [GCC 7.2.0]
>>> [Wed Jun 13 23:23:30.077720 2018] [wsgi:error] [pid 4758]
>>> [Wed Jun 13 23:23:30.077729 2018] [wsgi:error] [pid 4758] PREFIX /usr
>>> [Wed Jun 13 23:23:30.077745 2018] [wsgi:error] [pid 4758] PATH
>>> ['/var/www/FlaskApp/', '/var/www/FlaskApp/', '/var/www/FlaskApp/',
>>> '/var/www/FlaskApp', '/usr/lib/python36.zip', '/usr/lib/python3.6',
>>> '/usr/lib/python3.6/lib-dynload', '/usr/local/lib/python3.6/dist-packages',
>>> '/usr/lib/python3/dist-packages']
>>> [Wed Jun 13 23:23:30.080656 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] mod_wsgi (pid=4758): Failed to exec Python script file
>>> '/var/www/FlaskApp/flaskapp.wsgi'.
>>> [Wed Jun 13 23:23:30.080701 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] mod_wsgi (pid=4758): Exception occurred processing WSGI
>>> script '/var/www/FlaskApp/flaskapp.wsgi'.
>>> [Wed Jun 13 23:23:30.080846 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] Traceback (most recent call last):
>>> [Wed Jun 13 23:23:30.080893 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] File "/var/www/FlaskApp/flaskapp.wsgi", line 11, in
>>> <module>
>>> [Wed Jun 13 23:23:30.080907 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] from FlaskApp import app as application
>>> [Wed Jun 13 23:23:30.080916 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] File "/var/www/FlaskApp/FlaskApp/__init__.py", line 2,
>>> in <module>
>>> [Wed Jun 13 23:23:30.080921 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] from flask import Flask
>>> [Wed Jun 13 23:23:30.080927 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] File
>>> "/usr/local/lib/python3.6/dist-packages/flask/__init__.py", line 17, in
>>> <module>
>>> [Wed Jun 13 23:23:30.080931 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] from werkzeug.exceptions import abort
>>> [Wed Jun 13 23:23:30.080937 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] File
>>> "/usr/local/lib/python3.6/dist-packages/werkzeug/__init__.py", line 151, in
>>> <module>
>>> [Wed Jun 13 23:23:30.080941 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] __import__('werkzeug.exceptions')
>>> [Wed Jun 13 23:23:30.080947 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] File
>>> "/usr/local/lib/python3.6/dist-packages/werkzeug/exceptions.py", line 67,
>>> in <module>
>>> [Wed Jun 13 23:23:30.080951 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] from werkzeug._internal import _get_environ
>>> [Wed Jun 13 23:23:30.080957 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] File
>>> "/usr/local/lib/python3.6/dist-packages/werkzeug/_internal.py", line 15, in
>>> <module>
>>> [Wed Jun 13 23:23:30.080961 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] from datetime import datetime, date
>>> [Wed Jun 13 23:23:30.080967 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] File "/usr/lib/python3.6/datetime.py", line 8, in
>>> <module>
>>> [Wed Jun 13 23:23:30.080971 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] import math as _math
>>> [Wed Jun 13 23:23:30.080988 2018] [wsgi:error] [pid 4758] [remote
>>> 127.0.0.1:57698] ModuleNotFoundError: No module named 'math'
>>>
>>> How is Anaconda being picked up?
>>>
>>> Can we check PATH setting for Apache boot ?
>>>
>>>
>>> On Jun 13, 2018, at 11:17 PM, Graham Dumpleton <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>> print('VERSION', sys.version)
>>> print('PREFIX', sys.prefix)
>>> print('PATH', sys.path)
>>>
>>>
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>>
>>
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