On Mar 5, 8:14 am, Pigletto <[EMAIL PROTECTED]> wrote: > Hi! > > I'm observing that "can't adapt" error appears on my Django powered > site sometimes. After Apache restart everything is OK for few days and > again... can't adapt appears. This is same thing as described > there:http://groups.google.com/group/django-users/browse_frm/thread/b11f8fb... > > In my case error is in: > /var/www/django/django_sources/app1/test/django/django/db/backends/ > util.py in execute, line 18 > which turns out to be: > return self.cursor.execute(sql, params) > > I have: > 1. django from svn - newforms-admin branch, rev. 7106 (so it contains > patch for unicode problems as described in the linked topic above) > 2. Apache 2 with mod_python and multiple django instances (multiple > python interpreters) > 3. psycopg2 - version from svn that contains patch for Decimal as > described there:http://www.initd.org/tracker/psycopg/ticket/192 > > Problem is possibly with multiple interpreters and psycopg2 again, so, > as I can't find how, where and why this happens, the question is how > can I change my environment to workaround this problem? > > I wonder about removing multiple interpreters issue by: > 1. changing apache to MPM workers mode > or > 2. Using distinct VirtualHost for each application (so I don't have to > set python_interpreter within VirtualHost directive) > > but I'm not sure if any of the above may help? Any ideas?
Neither 1 or 2 will help as multiple interpreters will still be used. If it really is some problem with interaction between multiple sub interpreters in the same process, possibly connected with psycopg2, one option may be to use mod_wsgi (www.modwsgi.org) instead and specifically use its daemon mode to delegate each Django instance to run in a separate set of daemon processes. If it is something to do with psycopg2 code not working in secondary sub interpreters, can also with mod_wsgi force each Django instance to run in main interpreter of their respective sets of processes. Alternatively, use a fastcgi, scgi or ajp based hosting solution. Graham --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
