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In Google Cloud Memorystore Redis Standard, can a read replica be promoted to master?

Can a read replica become master/primary (with automatic or manual promotion) in Google Cloud Memorystore Redis Standard?

If so:

  • How do I did this?
  • Why do they present High Availability as a separate feature, when read-replicas could just serve this purpose?
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2

Answers


  1. 0

    check this answer, you should use SlaveOf command
    [https://stackoverflow.com/questions/34155977/redis-promoting-a-slave-to-master-manually]

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  2. 0

    Yes, The read replica can be promoted to master/primary in Google Cloud Memorystore Redis Standard. This process is known as the failover. It can be achieved either Automatically or manually. For more information about the failover you can refer to the documents Failovers for instances with read replicas and Manual Failover. You can follow the process of manual failover initiation which is documented here Initiate a manual failover.

    High availability (HA) is the ability of a system to operate continuously for a designated period of time even if components within the system fail. Failover is a means of achieving high availability (HA). The difference between the HA and the Failover is explained in the StackOverflow case .How Memorystore for Redis provides high availability is explained in the documentation High availability for Memorystore for Redis.

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