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app/cache/redis_client.py

@@ -8,7 +8,13 @@ import logging
 import time
 from collections import OrderedDict
 from typing import Optional
-import redis.asyncio as aioredis
+try:
+    import redis.asyncio as aioredis
+    _REDIS_MODULE_AVAILABLE = True
+except ImportError:
+    aioredis = None
+    _REDIS_MODULE_AVAILABLE = False
+
 from app.config import get_settings
 
 logger = logging.getLogger(__name__)
@@ -71,21 +77,22 @@ class LRUCache:
 _in_memory_cache = LRUCache(maxsize=5000)
 
 _redis_client = None
-_redis_is_available = True
+_redis_is_available = _REDIS_MODULE_AVAILABLE  # False si el módulo no está instalado
 _reconnect_task = None
 
 
 async def get_redis():
     global _redis_client
+    if not _REDIS_MODULE_AVAILABLE:
+        raise RuntimeError("redis module not installed; using in-memory fallback")
     if _redis_client is None:
-        import redis.asyncio as aioredis
         from app.config import get_settings
         settings = get_settings()
         _redis_client = await aioredis.from_url(
             settings.redis_url,
             encoding="utf-8",
             decode_responses=True,
-            max_connections=settings.redis_max_connections or 20,
+            max_connections=getattr(settings, 'redis_max_connections', 20) or 20,
             socket_keepalive=True,
             socket_connect_timeout=5,
             socket_timeout=5,