django-slow-log

django-slow-log is an additional logging layer that keeps a log similar to an apache or nginx request log, but adds additional higher level information about the state of the process and the resources used by the server during the generation of the response.

installing/usage

To use, add to your MIDDLEWARE_CLASSES in settings.py:

MIDDLEWARE_CLASSES = (
    'django_slow_log.middleware.SlowLogMiddleware',
    ...
)

There is a patch for Django 1.2.x branch that adds a query_count attribute to the postgres core connection object. This is a git patch and must be applied using git-apply. Inside a Django 1.2.x fork, use the following steps:

Take a look at the patch:

git apply --stat /path/to/slow/log/repo/patches/add_query_count_to_django_1.x_core.patch

Test the patch before applying it:

git apply --check /path/to/slow/log/repo/patches/add_query_count_to_django_1.x_core.patch

Apply the patch if there aren't errors:

git am --signoff < /path/to/slow/log/repo/patches/add_query_count_to_django_1.x_core.patch

If this patch is not applied, the queries field will be null unless django is running in DEBUG = True.

settings

DJANGO_SLOW_LOG_PRINT_ONLY

do not keep a log in a file, only print; this can be useful for use on your devbox (via runserver)

DJANGO_SLOW_LOG_LOCATION

path of the log file (default: /var/log/django-slow.log)

celery

OFFLOAD_SLOW_LOG

Defaults to False. When set to True, Django Slow Log will attempt to offload the log call to Celery. Celery must be installed to use this option. See http://celeryproject.org.

CELERY_IMPORTS

add django_slow_log.middleware to your CELERY_IMPORTS config tuple for djcelery.