I'm having the
"RuntimeError: instance.__dict__ not accessible in restricted mode"
problem mentioned in the FAQ and the TracSubversion wiki page.
However, this is on mod_wsgi instead of mod_python. The software
versions are:
* Debian 4.0 Etch
* Apache 2.2.3
* Python 2.4.4
* Subversion 1.4.2
I'm running
* Trac instance "tracmain" with multiple Trac sites
* Trac instance "tracsingle" with a single Trac site
(which is one of the sites in instance "tracmain")
At first both Trac instances work fine, but after some time one of them
starts to fail with the runtime error.
Things I've tried:
* removing authentication directives temporarily from the Apache
settings
* mpm-prefork and mpm-worker
* same and different application group (also %{GLOBAL} for both)
* same and different process group
* same and different egg cache directory
After every change to the settings I always first stop then start
Apache. Nothing I've tried has made the problem go away yet.
I'm running out of ideas after reading through and trying all the
tricks mentioned in related Trac tickets, mod_wsgi documentation and
mailing list messages.
Here is my configuration:
-------------------------------- /etc/apache2/sites-available/tracmain
<VirtualHost *>
ServerName trac.mydomain.com
WSGIDaemonProcess trac user=www-data group=www-data threads=25
WSGIScriptAlias / /var/lib/trac/apache/tracmain/trac.wsgi
<Directory /var/lib/trac/apache/tracmain/trac.wsgi>
WSGIProcessGroup trac
WSGIApplicationGroup %{GLOBAL}
Order deny,allow
Allow from all
</Directory>
<Location /*/login>
AuthType Basic
AuthName "Main Trac site"
AuthUserFile /var/lib/trac/users.htpasswd
Require valid-user
</Location>
LogLevel warn
CustomLog /var/log/apache2/tracmain.access.log combined
ServerSignature On
</VirtualHost>
-------------------------------- /etc/apache2/sites-available/tracsingle
<VirtualHost *>
ServerName tracsingle.mydomain.com
WSGIDaemonProcess tracsingle user=www-data group=www-data threads=25
WSGIScriptAlias / /var/lib/trac/apache/tracsingle/trac.wsgi
<Directory /var/lib/trac/apache/tracsingle/trac.wsgi>
WSGIProcessGroup trac
WSGIApplicationGroup %{GLOBAL}
Order deny,allow
Allow from all
</Directory>
<Location /login>
AuthType Basic
AuthName "Trac Site"
AuthUserFile /var/lib/trac/users.htpasswd
Require valid-user
</Location>
LogLevel warn
CustomLog /var/log/apache2/tracsingle.access.log combined
ServerSignature On
</VirtualHost>
-------------------------------- /var/lib/trac/apache/tracmain/trac.wsgi
import sys
sys.stdout = sys.stderr
import os
os.environ['PYTHON_EGG_CACHE'] = '/var/lib/trac/.python-eggs/tracmain'
import trac.web.main
def application(environ, start_response):
environ['trac.env_parent_dir'] = '/var/lib/trac'
return trac.web.main.dispatch_request(environ, start_response)
-------------------------------- /var/lib/trac/apache/tracsingle/trac.wsgi
import sys
sys.stdout = sys.stderr
import os
os.environ['PYTHON_EGG_CACHE'] = '/var/lib/trac/.python-eggs/tracsingle'
import trac.web.main
def application(environ, start_response):
environ['trac.env_path'] = '/var/lib/trac/tracsingle'
return trac.web.main.dispatch_request(environ, start_response)
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