No downtime indexing updates in Azure Cosmos DB
Published date: 05 August, 2020
You can now confidently make indexing changes without fear of impacting existing reads and writes. Before this change, write performance was unaffected during index updates but query results were not consistent while the index transformation was ongoing. Now, adding a new index will not impact read or write performance. This change has been rolled out to all Azure Cosmos DB accounts across all APIs and you can learn more in our indexing documentation.