53e0065e3e
配置 SSOT（TOML + .env） 统一错误契约 Auth 与事务边界 Redis / Celery 可靠性:业务 Redis（DB/0）与 Celery broker/backend（DB/1）显式拆分；连接池、sync client 可观测性（OpenTelemetry + LGTM）
50 lines
1.1 KiB
Markdown
50 lines
1.1 KiB
Markdown
---
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title: Manage Indexes for Zero-Downtime Updates
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impact: MEDIUM
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impactDescription: Use aliases for seamless index updates
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tags: rqe, index, alias, management, reindex
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description: Manage Indexes for Zero-Downtime Updates
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alwaysApply: true
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---
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## Manage Indexes for Zero-Downtime Updates
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Use aliases to swap indexes without application changes.
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**Correct:** Use aliases for production indexes.
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```
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# Create versioned index
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FT.CREATE idx:products_v2 ON HASH PREFIX 1 product:
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SCHEMA
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name TEXT
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category TAG SORTABLE
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price NUMERIC SORTABLE
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# Point alias to new index
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FT.ALIASADD products idx:products_v2
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# Application queries use alias
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FT.SEARCH products "@category:{electronics}"
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# Later, swap to new version
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FT.ALIASUPDATE products idx:products_v3
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```
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**Useful management commands:**
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```
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# Check index info
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FT.INFO idx:products
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# Drop and recreate (non-blocking)
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FT.DROPINDEX idx:products
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FT.CREATE idx:products ...
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# List all indexes
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FT._LIST
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```
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Reference: [Redis Search Index Management](https://redis.io/docs/latest/develop/interact/search-and-query/administration/)
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