Troubleshooting¶

@cacheable still caches in memory¶

• Is pico-data-redis installed in the same venv as pico-caching?
• With plain pico-ioc (no pico-boot), list the module: init(modules=["pico_caching", "pico_data_redis", ...]).
• A user-provided CacheBackend component competes with this one; the interceptor picks the first non-in-memory backend it finds.

Redis is down and nothing failed¶

By design (fail-open): reads miss, writes drop, methods recompute. Watch the Redis side with your own monitoring; if you need hard failures, use the injected client directly.

My cached values disappear on restart¶

Check you are actually on the Redis backend (see first entry) and that the TTL (@cacheable(ttl_seconds=...)) is what you think — entries expire server-side via PX.

clear() did not delete my other keys¶

Correct: it only deletes redis.cache_prefix-prefixed keys. Flush anything else explicitly with the injected client.

Unpickling errors after a deploy¶

Cached objects from the previous code version may not unpickle into the new classes. Bump redis.cache_prefix (or flush the namespace) on deploys that change cached types.