- Due to an issue with mod_python possibly causing deadlocks with Xapian (http://trac.xapian.org/ticket/364), when Python is not invoked through the "main interpreter", mod_python is not supported with xapian-haystack. It may work, with some tweaking, but your mileage will vary.
- Because Xapian does not support simultaneous WritableDatabase connections, it is *strongly* recommended that users take care when using RealTimeSearchIndex to either set `WSGIDaemonProcess processes=1` or use some other way of ensuring that there are not multiple attempts to write to the indexes. Alternatively, use SearchIndex and a cronjob to reindex content at set time intervals (sample cronjob can be found here: http://gist.github.com/216247) or derive your own SearchIndex to implement some other form of keeping your indexes up to date.
The easiest way to test xapian-haystack is to symlink or copy the xapian_haystack/tests folder into the haystack/tests folder so that your source tree resembles this layout:
django-haystack
+---haystack
| |
| +---backends
| |
| +---solr_backend.py
| +---whoosh_backend.py
| +---xapian_backend.py
+---tests
|
+---core
+---solr_tests
+---whoosh_tests
+---xapian_tests
Once this is done, the tests can be executed in a similar fashion as the rest of the Haystack test-suite:
django-admin.py test xapian_tests --settings=xapian_settings
Feel free to open an issue here: http://github.com/notanumber/xapian-haystack/issues
Alternatively, ask questions on the django-haystack [mailing list](http://groups.google.com/group/django-haystack/) or [irc channel](irc://irc.freenode.net/haystack).
