模板 / flowchart
多区域故障转移
主备区域架构,通过健康检查驱动的 DNS 故障转移路径。
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Mermaid 11 渲染器
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Mermaid 源码
flowchart
flowchart TD
dns[Global DNS / traffic manager] --> primary[Primary region]
dns -.failover.-> secondary[Secondary region]
health[Health checks] -->|primary healthy| dns
health -->|primary down| failover[Trigger failover]
failover --> dns
primary --> db1[(Primary DB)]
secondary --> db2[(Read replica)]
db1 -.async replication.-> db2