Can we set some configuration to not use any cache?

When we use chartmuseum 0.15.0 and using minio as storage backend and we replicas our pod to 2 or 5. We have found the data not synced from different pod or entrypoint and the memory cache not updated with storage . When we get repo charts information or index.yaml, it will gives some charts name not found. Is there any configuration we can not use any cache for we now not use ouside cache it usese the memory cache.