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wiki/concepts/功能标志.md
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wiki/concepts/功能标志.md
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title: "功能标志"
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type: concept
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tags: [Deployment, Feature Flags, DevOps]
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sources: [rto-vs-rpo-disaster-recovery.md]
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last_updated: 2025-07-26
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---
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## Summary
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功能标志是控制功能开启/关闭的开关,无需重新部署即可改变系统行为。
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## Definition
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功能标志允许团队在不重新部署代码的情况下切换功能状态,支持渐进式发布和即时回滚。
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## Key Claims
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- 部署与发布解耦:可随时部署,择机发布
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- 渐进式发布:1%→5%→25%→100%
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- Kill Switch:紧急情况下立即关闭问题功能
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- 将回滚时间从数小时缩短到秒级
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## Connections
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- [[RTO]] ← 改善 ← 功能标志
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- [[RPO]] ← 保护 ← 功能标志
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- [[LaunchDarkly]] ← 平台 ← 功能标志
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