django-postgres-metrics 0.6.1

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A Django application that exposes a bunch of PostgreSQL database metrics.

Background

At PyCon Canada 2017 Craig Kerstiens gave a talk “Postgres at any scale”. In his talk Craig pointed out a bunch of metrics one should look at to understand why a PostgreSQL database could be “slow” or not perform as expected.

This project adds a Django Admin view exposing these metrics to Django users with the is_superusers flag turned on.

Installation

Start by installing django-postgres-metrics from PyPI:

$ pip install django-postgres-metrics

You will also need to make sure to have psycopg2 or psycopg2-binary installed which is already a requirement by Django for PostgreSQL support anyway.

Then you need to add postgres_metrics to your INSTALLED_APPS list. Due to the wait postgres_metrics works, you need to include it before the admin app:

INSTALLED_APPS = [
    'postgres_metrics.apps.PostgresMetrics',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

Lastly, you need to add a URL path to your global urls.py before the admin URL patterns.

For Django 2.0 and up:

from django.urls import include, path
urlpatterns = [
    path('admin/postgres-metrics/', include('postgres_metrics.urls')),
    path('admin/', admin.site.urls),
]

For Django 1.11 and before:

from django.conf.urls import include, url
urlpatterns = [
    url(r'^admin/postgres-metrics/', include('postgres_metrics.urls')),
    url(r'^admin/', admin.site.urls),
]

Security

If you found or if you think you found a security issue please get in touch via info+django-postgres-stats *AT* markusholtermann *DOT* eu.

I’m working about this in my free time. I don’t have time to monitor the email 24/7. But you should normally receive a response within a week. If I haven’t got back to you within 2 weeks, please reach out again.

TESTING

To run the unit tests:

$ pip install tox
$ tox