Clear() deletes all Redis keys instead of limiting deletes only to namespace

[Girgitt]

Thank you for a very fast caching solution.

I think there could be an issue with clear method when aiocache is used with Redis.

environment

1. OS: linux (mint 21 and Rocky 8.5)
2. platform: amd64
3. software stack: FastApi (v0.70.0) on python 3.6, redis (v6.0.16) and keydb (v6.2.1)
4. aiocache versions:
   aiocache==0.11.1
   aioredis==1.3.1

how to reproduce

1. create some keys in redis
2. clear aiocache on startup (e.g. within FastApi's init) with code:

from fastapi import FastAPI

from asyncio import get_event_loop
from aiocache import Cache
from aiocache.serializers import PickleSerializer


class SomeRestServer(FastAPI):
    def __init__(self, title: str = "test api") -> None:
        super().__init__(title=title)

        self._results_cache = Cache(Cache.REDIS, serializer=PickleSerializer(),
                                    endpoint="127.0.0.1", port=6379, namespace="some_name")

        loop = get_event_loop()
        task = loop.create_task(self._results_cache.clear(namespace="some_name"))
        loop.run_until_complete(task)

expected behavior

3a. keys created in step 1 are available after calling the clear method

actual behavior

3b. all keys are deleted from redis (no matter if namespace value is passed to clear method or not)

[Dreamsorcerer]

Think #523 is meant to solve this. If anyone wants to finish up the PR, then we can get this fixed.

[antont]

#523 is closed now, maybe this is fixed as well?

[KundaPanda]

Just encountered this quite randomly as well. We had to create our own subclass to solve this. Good thing the redis helm chart has flushdb disabled by default.