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AWS RDS failover with read replica instances

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I have few questions about AWS RDS disaster recovery when read replication is enabled.

  1. What happens when an AWS RDS database has read replication instances configured (in same and different AZ's) and the primary instance goes down, does one of the replication instances becomes primary, also what happens to the ongoing read/write operations?
  2. How the failover takes place when cross-region replication has been configured?
  3. Is the failover process being same for all kind of RDS databases?
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分析迁移与现代化数据库
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亚马逊关系数据库服务数据库
语言
English
已提问 2 年前1008 查看次数
1 回答
1
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Hi,

The processed is detailled for Aurora instances in https://dev.to/aws-builders/doing-failover-in-amazon-aurora-read-replica-with-the-highest-priority-4okb

Best,

Didier

专家
已回答 2 年前
专家
已审核 2 年前
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已审核 2 年前
  • Susmita Sarkar
    2 年前

    I suppose this is for Amazon Aurora databases, is it same for all the RDS supported databases, Like Oracle /MySQL/MSSQL?

  • Didier Durand 专家
    2 年前

    Hi, externally (i.e from a user standpoint like you and me). yes. Internally, it's of course dependent of the specific architecture of each dbms. But, those differences are not surfaced.

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