A Django application that exposes a bunch of PostgreSQL database metrics.
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.
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 way 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',
]
You also need to make sure that the request
context processor is included in the TEMPLATES
setting. It is included by default for projects that were started on Django 1.8 or later:
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'OPTIONS': {
'context_processors': [
...,
'django.template.context_processors.request',
...,
],
},
},
]
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),
]
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.
To run the unit tests:
$ pip install tox
$ tox