Setting up Failover Priorities for Azure Cosmos DB from Azure Portal

By | February 15, 2018

Setting up Automatic Failover for Azure Cosmos DB

In the previous post, we discussed setting up global replication of Azure Cosmos DB database using the Azure portal.  Priorities of data center regions can be specified after Geo-Replication configuration. This is to decide which data center to go first for failover in case of a disaster. Azure Cosmos DB enables us to tag a priority to every data center regions.

Setting up Failover Priorities for Azure Cosmos DB

first of all, navigate to the Geo-Replication window to configure the failover priorities. Select the “Automatic Failover” option and Turned it on.  And, then drag and drop the region in reading the section to change your priorities.

Setting up Automatic Failover for Azure Cosmos DB

Setting up Automatic Failover for Azure Cosmos DB

In case of an outage, Azure Cosmos DB ensure the automatic failover is on. And, the sequence occurs in the priority of the order that we have specified.

Automatic Failover Priorities

Automatic Failover Priorities

This is very easy to configure & setup on the Azure Portal. You can also manage this programmatically with the help of Cosmos DB Resource Provider – Database Accounts – Failover Priority Change 

The Failover Priorities are set for the read regions.  In case of an outage, Azure Cosmos DB ensure the failover based on the priorities specified. 

You can also setup the Manual Failover ( Select a Read Region to become the new Write Region). You can achieve that by manually changing the current write region to any of the replicated read regions. In this case, select the “Manual Failover” option. And, then select the regions for failover from one of the read region.

Manual Failover Setup for Cosmos DB

Manual Failover Setup for Cosmos DB

Read more about Azure Cosmos DB Failover from here.

Hope this helps.

Author: Abhijit Jana

Abhijit runs the Daily .NET Tips. He started this site with a vision to have a single knowledge base of .NET tips and tricks and share post that can quickly help any developers . He is a Former Microsoft ASP.NET MVP, CodeProject MVP, Mentor, Speaker, Author, Technology Evangelist and presently working as a .NET Consultant. He blogs at http://abhijitjana.net , you can follow him @AbhijitJana . He is the author of book Kinect for Windows SDK Programming Guide.

2 thoughts on “Setting up Failover Priorities for Azure Cosmos DB from Azure Portal

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