--- title: Manage Indexes for Zero-Downtime Updates impact: MEDIUM impactDescription: Use aliases for seamless index updates tags: rqe, index, alias, management, reindex description: Manage Indexes for Zero-Downtime Updates alwaysApply: true --- ## Manage Indexes for Zero-Downtime Updates Use aliases to swap indexes without application changes. **Correct:** Use aliases for production indexes. ``` # Create versioned index FT.CREATE idx:products_v2 ON HASH PREFIX 1 product: SCHEMA name TEXT category TAG SORTABLE price NUMERIC SORTABLE # Point alias to new index FT.ALIASADD products idx:products_v2 # Application queries use alias FT.SEARCH products "@category:{electronics}" # Later, swap to new version FT.ALIASUPDATE products idx:products_v3 ``` **Useful management commands:** ``` # Check index info FT.INFO idx:products # Drop and recreate (non-blocking) FT.DROPINDEX idx:products FT.CREATE idx:products ... # List all indexes FT._LIST ``` Reference: [Redis Search Index Management](https://redis.io/docs/latest/develop/interact/search-and-query/administration/)