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Azure Database for PostgreSQL Blog
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Postgres horizontal scaling with elastic clusters expands to more regions

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awolk
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Feb 10, 2025

We are excited to announce the availability of elastic clusters (preview) on Azure Database for PostgreSQL Flexible server, a feature that enables a database to be scaled out horizontally beyond a single node in six new additional regions.

What are Elastic Clusters?

Elastic clusters on Azure Database for PostgreSQL provide a solution for horizontal scaling, allowing you to outgrow the constraints of a single node Azure Database for PostgreSQL flexible server.

Benefits of using elastic clusters (Preview)

  • Familiarity: It’s the same Flexible server you know and love, with the same feature set.
  • Horizontal scaling: Grow your cluster out by adding more Flexible servers – lifting the single node limitation for your application growth.
  • Simplicity: Offload complexity of sharding from your application layer to the managed service.
  • Cost efficiency: You are not paying more than you would for the same amount of Flexible servers as nodes in your elastic cluster with the benefit of simplified management of the fleet.
  • AI ready: Modern AI applications require storage of vast amounts of vectorized data. Their data models, however, are usually simple and scale out very well with sharding models provided by elastic clusters.

Regional availability

This flexible server feature has been available in the following six regions since November 2024:

  • East Asia
  • East US
  • North Europe
  • UK South
  • West US
  • West US 3

Starting on February 2025, we are doubling the regional availability by expanding elastic clusters to the following regions:

  • Central US
  • Germany North
  • Germany West Central
  • Japan East
  • Southeast Asia
  • West Europe

Ready to dive in?

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Azure Database for PostgreSQL

Quickstart: Create elastic cluster with Azure portal 

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Postgres horizontal scaling with elastic clusters on Azure Database for PostgreSQL Flexible server 

Elastic clusters with PostgreSQL Flexible server

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Updated Feb 10, 2025
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