Kubernetes Native Data Service: Primary Failover of a PostgreSQL Instance | Episode 9

Welcome to part 9 of our anynines video series where we delve into the intricacies of PostgreSQL failover using a8s within a Kubernetes environment.
In this tutorial, we explore how a8s efficiently handles primary failover for PostgreSQL instances with multiple replicas.

🚨 🚧 The link to the documentation will be provided to you in the nearer future 🚧 🚨

00:00 – Intrp
01:17 – Asynchronous streaming replication cluster
02:07 – Which one is the primary replica?
03:36 – If the primary replica dies can my application keep writing to the data base? a8s has it under control. See how!
06:32 – What happens then with the old primary dead replica?
07:53 – Identity change of replicas after being replaced.

💡 Summary:
In this comprehensive tutorial, we navigate the dynamic world of PostgreSQL failover within Kubernetes using a8s. We learn how a PostgreSQL cluster’s primary and secondary replicas work together in an asynchronous streaming replication setup. Discover how Kubernetes labels help identify these replicas, and witness the graceful handling of primary failure through automatic failover, ensuring uninterrupted database operations. Furthermore, explore how a8s leverages Kubernetes service IPs to provide a seamless experience for applications during primary changes. If you’re eager to master PostgreSQL failover within Kubernetes, this video is your ultimate guide.

a8s is a powerful platform that enables seamless execution of data services like PostgreSQL. From provisioning instances to backups, restores, application binding, and observability, we cover it all.

With a8s currently in beta, you have the opportunity to try it out on our website.

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