FLUSHDB

NetEase Game Operations Platform

Jul 27, 2019 · Databases

Using Redis Secondary Indexes to Replace FLUSHDB for Targeted Cache Invalidation

The article examines the risks of using the dangerous FLUSHDB command in Redis, explores common alternatives like SCAN, async deletion, and expiration, and proposes a secondary‑index solution using sets and sorted sets to efficiently invalidate only the affected cache entries without blocking the service.