django-redis persisting json data

Question

I have a small django site which controls an anstronomy dome and house automation. On start up the project loads 3 json files: relays, conditions and homeautomation. To avoid constant reading and writing to the Pi4's ssd I load the json files into REDIS (on start up in apps, see below). I already have REDIS running in a docker as the project uses celery.

My problem is that within a few minutes of loading the json into REDIS it clears the data out of cache.

I load the json file in the form of a dictionary (dict) in apps

cache.set("REDIS_ashtreeautomation_dict", dict, timeout=None)

and set

CACHES = {
"default": {
    "BACKEND": "django_redis.cache.RedisCache",
    "LOCATION": "redis://redis:6379",
    "OPTIONS": {
        "CLIENT_CLASS": "django_redis.client.DefaultClient",
        "SERIALIZER": "django_redis.serializers.json.JSONSerializer",
        "TIMEOUT": None
    }
}

}

I don't need the data to persist if the dockers go down and I don't need db functions. Caching these files is ideal but I need them to 'stay alive' for the lifetime of the server.

Thank you.

Answer 1

Thank you Kevin.

Moving TIMEOUT solved the issue.

CACHES = {
"default": {
    "BACKEND": "django_redis.cache.RedisCache",
    "LOCATION": "redis://redis:6379",
    "TIMEOUT": None,
    "OPTIONS": {
        "CLIENT_CLASS": "django_redis.client.DefaultClient",
        "SERIALIZER": "django_redis.serializers.json.JSONSerializer",
    }
}

}

I am going to include some code to catch the long term REDIS 'eviction' policies (ie reload the json data). I don't want to delve into the REDIS docker.

Thanks

Ian