On Tue, Jun 1, 2010 at 11:35 PM, viper <[email protected]> wrote: > I'm running mod_wsgi under my virtual server provider (VSP), [...] > everything over ipv6 to ipv4. [...] I ruled out 'iptables'. > > My question is (and perhaps if it pertains only to apache2 or python, > please feel free to post):
I agree with Graham, this is unlikely to be a python or mod_wsgi issue. Test with a static file under Apache to be sure. Just guessing, this could be a DNS issue. Check to see if Apache is configured to do reverse DNS lookups? If so, test again with it disabled. I assume you meant ip6tables if you're on an IPv6 stack. Even then, netfilter (e.g., ip*tables) is unlikely to result in performance issues, unless you're using the rather atypical packet rate-limiting targets. Also when you say you tested locally, were you using the loopback such as one of: curl -g -v "http://[::1]/"; ab "http://[::1]/"; or something different? If these things don't help, and you still see the problem with serving static files; your best bet would be to contact your VSP for help, or perhaps the Apache groups. > Do I need to do or install anything to support ip6? Since the socket handling is inside Apache and not mod_wsgi there is nothing special you need to do (in python or mod_wsgi) to support IPv6. You may need to configure Apache and/or the OS though. However do be aware that some WSGI variables (like "REMOTE_ADDR") that may typically contain ASCII representations of IP addresses will obviously have IPv6 addresses instead (in colon-representation). So if your application does any processing of those, your app needs to be aware of the different address notations. The standard python urlparse module can deal with URLs using IPv6 literals (RFC 2732). But if you need to mess directly with IPv6 addresses you may want to look at the IPy package, http://pypi.python.org/pypi/IPy -- Deron Meranda http://deron.meranda.us/ -- You received this message because you are subscribed to the Google Groups "modwsgi" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/modwsgi?hl=en.
