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DP-420: Azure Cosmos DB RU/s Monitoring Ensure Optimize Performance with Region Removed Alerts

Learn how to leverage Azure Monitor’s “Region Removed” signal to receive alerts when Azure Cosmos DB requests exceed available RU/s, ensuring optimal database performance and preventing service disruptions.

Table of Contents

Question

You have an Azure Cosmos DB Core (SQL) API account that has multiple write regions.

You need to receive an alert when requests that target the database exceed the available request units per second (RU/s).

Which Azure Monitor signal should you use?

A. Data Usage
B. Metadata Requests
C. Region Removed
D. Region Added

Answer

C. Region Removed

Explanation

Monitoring “Region Removed” alerts you to potential exceeding of available RU/s because it indicates a region’s unavailability, possibly due to reaching capacity limits.

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