Question

A developer is writing a .NET application to migrate 50 million JSON documents into an Azure Cosmos DB for NoSQL container that has been provisioned with autoscale up to 40,000 RU/s. The migration runs from an Azure VM in the same region as the Cosmos DB account and must complete as quickly as possible while maximizing throughput utilization. Which combination of SDK configuration settings should the developer use?

Accepted Answer

Enable Bulk mode by setting AllowBulkExecution = true on CosmosClientOptions, and use Direct connection mode.

Answer

Use Gateway connection mode with AllowBulkExecution = true to reduce the number of open TCP connections.

Answer

Wrap all inserts in a single stored procedure and call it repeatedly to guarantee transactional consistency across the import.

Answer

Issue individual CreateItemAsync calls sequentially with Direct connection mode and rely on automatic retries for throttled requests.