Django caching with Redis

Question

I have implemented django caching using redis following this blog: https://realpython.com/caching-in-django-with-redis/

So I followed this, installed the package, Added in

CACHES = {
"default": {
    "BACKEND": "redis_cache.RedisCache",
    "LOCATION": "redis://127.0.0.1:8000/",
    "OPTIONS": {
        "CLIENT_CLASS": "django_redis.client.DefaultClient"
    },
    "KEY_PREFIX": "example"
}

}

Then in views.

from django.conf import settings
from django.core.cache.backends.base import DEFAULT_TIMEOUT
from django.views.decorators.cache import cache_page

CACHE_TTL = getattr(settings, 'CACHE_TTL', DEFAULT_TIMEOUT)

and then added the decorator for the function

@cache_page(CACHE_TTL)
@login_required_dietitian
def patient_profile(request, id):
    data = {}
    return render(request, 'profile.html', {'data':data})

And then I am getting this error while I run the server

redis.exceptions.ConnectionError: Connection closed by server.

I am new to such caching technique, Any suggestion how to resolve this issue?

Mark Barrett · Accepted Answer · 2019-09-27 13:03:30Z

3

Your configuration specifies Redis on port 8000, Redis, by default, runs on port 6379. Looks like its trying to connect your Django app, hence the Connection Error. Redis runs as a separate process, listening for requests on port 6379.

answered Sep 27, 2019 at 13:03

Mark Barrett

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11 Comments

Harshit verma Over a year ago

Okay initially I thought i am suppose to enter my local host port number.

Harshit verma Over a year ago

But now I changed the port number to 6379 and I am getting this error: "Error 10061 connecting to 127.0.0.1:6379. No connection could be made because the target machine actively refused it." Any idea about this?

Mark Barrett Over a year ago

Have you started the Redis server? Redis itself has to be started alongside Django. Start it: redis-server on the command line.

Harshit verma Over a year ago

Getting this error now, and couldn't find any simple solution for this : "'redis-server' is not recognized as an internal or external command, operable program or batch file."

Mark Barrett Over a year ago

So have you installed Redis? If so, the reason it can't find it is because you haven't added redis-server to your environment variables. Check this out redislabs.com/blog/redis-on-windows-8-1-and-previous-versions, scroll down to where it mentions Environment Variables and follow that.

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Boy Nandi · Accepted Answer · 2022-07-21 13:14:14Z

0

First of all follow this https://computingforgeeks.com/how-to-install-redis-on-fedora/ guide to install redis into your system and start it. In my case it is fedora and there is a link to Ubuntu on the page.

Change the port from 8000 to 6379 on LOCATION. Now then you'll be up and running.

I'd encourage this for a tutorial on redis for caching

answered Jul 21, 2022 at 13:14

Boy Nandi

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