500 Internal error with Apache

[guoyunhe]

Pootle 2.8.0rc5 (Django 1.10.7, Translate Toolkit 2.0.0)

I have installed Pootle following instruction. I can run it with

pootle runserver --insecure

But when I switch to Apache (wsgi, not proxy), it throw 500 error. In apache error log, I found:

[Sat May 06 13:15:56.827925 2017] [wsgi:error] [pid 11006] [client 84.249.204.100:45130] Truncated or oversized response headers received from daemon process 'pootle': /srv/www/vhosts/pootle/wsgi.py
[Sat May 06 13:15:56.863319 2017] [core:notice] [pid 10996] AH00052: child pid 11446 exit signal Segmentation fault (11)

But I have no idea what happened.

pootle.conf

<VirtualHost *:80>
    # Domain for the Pootle server. Use 'localhost' for local deployments.
    #
    # If you want to deploy on example.com/your-pootle/ rather than in
    # my-pootle.example.com/ you will have to do the following changes to
    # this sample Apache configuration:
    #
    # - Change the ServerName directive to:
    #   ServerName example.com
    # - Change the WSGIScriptAlias directive to (note that /your-pootle must
    #   not end with a slash):
    #   WSGIScriptAlias /your-pootle /srv/www/vhosts/pootle/wsgi.py
    # - Change the Alias directive for 'assets' to include the '/your-pootle'.
    # - Include the following settings in your custom Pootle settings:
    #   STATIC_URL = '/your-pootle/assets/'
    #   FORCE_SCRIPT_NAME = '/your-pootle'
    # - If you have previously calculated the stats:
    #   - Restart the RQ workers.
    #   - Run refresh_stats to recalculate the stats data.
    ServerName translate.kde-china.org

    # Set the 'POOTLE_SETTINGS' environment variable pointing at your custom
    # Pootle settings file.
    #
    # If you don't know which settings to include in this file you can use
    # the file '90-local.conf.sample' as a starting point. This file can be
    # found at '/srv/www/vhosts/pootle/env/lib/python2.7/site-packages/pootle/settings/'.
    #
    # Another way to specify your custom settings is to comment this
    # directive and add a new '90-local.conf' file (by copying the file
    # '90-local.conf.sample' and changing the desired settings) in
    # '/srv/www/vhosts/pootle/env/lib/python2.7/site-packages/pootle/settings/'
    # (default location for a pip-installed Pootle, having Python 2.7).
    #
    # This might require enabling the 'env' module.
    SetEnv POOTLE_SETTINGS /srv/www/vhosts/pootle/pootle.conf


    # The following two optional lines enable the "daemon mode" which
    # limits the number of processes and therefore also keeps memory use
    # more predictable.
    WSGIDaemonProcess pootle processes=2 threads=3 stack-size=1048576 maximum-requests=500 inactivity-timeout=300 display-name=%{GROUP} python-path=/srv/www/vhosts/pootle/env/lib/python2.7/site-packages
    WSGIProcessGroup pootle

    WSGIApplicationGroup {GLOBAL}

    # Point to the WSGI loader script.
    WSGIScriptAlias / /srv/www/vhosts/pootle/wsgi.py
    <Directory /srv/www/vhosts/pootle>
        Order deny,allow
        Allow from all
        <Files wsgi.py>
            Require all granted
        </Files>
    </Directory>

    # Turn off directory listing by default.
    Options -Indexes

    # Compress before being sent to the client over the network.
    # This might require enabling the 'deflate' module.
    SetOutputFilter DEFLATE
    AddOutputFilterByType DEFLATE text/html text/css text/plain text/xml application/x-javascript

    # Set expiration for some types of files.
    # This might require enabling the 'expires' module.
    ExpiresActive On

    ExpiresByType image/jpg "access plus 10 years"
    ExpiresByType image/png "access plus 10 years"
    ExpiresByType text/css "access plus 10 years"
    ExpiresByType application/x-javascript "access plus 10 years"

    # Optimal caching by proxies.
    # This might require enabling the 'headers' module.
    Header set Cache-Control "public"

    # Directly serve static files like css and images, no need to go
    # through mod_wsgi and Django. For high performance consider having a
    # separate server.
    Alias /assets /srv/www/vhosts/pootle/env/lib/python2.7/site-packages/pootle/assets
    <Directory /srv/www/vhosts/pootle/env/lib/python2.7/site-packages/pootle/assets>
        Order deny,allow
        Allow from all
    </Directory>

</VirtualHost>

wsgi.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os
import site
import sys


# You probably will need to change these paths to match your deployment,
# most likely because of the Python version you are using.
ALLDIRS = [
    '/srv/www/vhosts/pootle/env/lib/python2.7/site-packages',
    '/srv/www/vhosts/pootle/env/lib/python2.7/site-packages/pootle/apps',
]

# Remember original sys.path.
prev_sys_path = list(sys.path)

# Add each new site-packages directory.
for directory in ALLDIRS:
    site.addsitedir(directory)

# Reorder sys.path so new directories at the front.
new_sys_path = []

for item in list(sys.path):
    if item not in prev_sys_path:
        new_sys_path.append(item)
        sys.path.remove(item)

sys.path[:0] = new_sys_path

# Set the Pootle settings module as DJANGO_SETTINGS_MODULE.
os.environ['DJANGO_SETTINGS_MODULE'] = 'pootle.settings'


# Set the WSGI application.
def application(environ, start_response):
    """Wrapper for Django's WSGIHandler().

    This allows to get values specified by SetEnv in the Apache
    configuration or interpose other changes to that environment, like
    installing middleware.
    """
    try:
        os.environ['POOTLE_SETTINGS'] = environ['POOTLE_SETTINGS']
    except KeyError:
        pass

    from django.core.wsgi import get_wsgi_application
    _wsgi_application = get_wsgi_application()
    return _wsgi_application(environ, start_response)

[dwaynebailey]

@guoyunhe is this not a missing ALLOWED_HOSTS setting?

[phlax]

could also be related to a uwsgi setting related to headers

i need to find a ref...

[dwaynebailey]

We're pretty certain this solved with ALLOWED_HOSTS, but without feedback we can't confirm. So closing for now, please open if this issue is not solved.