Azure Cosmos DB - Unexpected 429 Errors with Provisioned Throughput During High Load
I need some guidance on I need help solving After trying multiple solutions online, I still can't figure this out... I'm experiencing unexpected 429 'Too Many Requests' errors when scaling up the provisioned throughput on my Azure Cosmos DB account. My application is using the .NET SDK version 3.27.0 and I have set the RU/s to 1000 for one of the containers. However, during peak load, I still see these errors even though I have configured automatic throughput scaling. I’ve tried increasing the throughput to 2000 RU/s manually and have implemented retry logic in my application using the `RequestOptions` to handle transient errors as follows: ```csharp var options = new RequestOptions { MaxRetryAttemptsOnThrottledRequests = 5, MaxRetryDelayOnThrottledRequests = TimeSpan.FromSeconds(30) }; var response = await container.ReadItemAsync<MyItem>(itemId, new PartitionKey(partitionKey), options); ``` Despite this, I'm still observing the 429 errors, and the retry logic doesn't seem to help since the errors continue to occur intermittently. Additionally, I’ve checked the metrics in the Azure portal and it shows that my container is utilizing around 80% of the allocated throughput during these times. Could there be a misconfiguration on my Cosmos DB account that’s causing these issues, or are there best practices for handling high load scenarios that I'm missing? Any insights or tips for optimizing throughput under load would be greatly appreciated. Thanks in advance! The stack includes C# and several other technologies. Could someone point me to the right documentation? The project is a CLI tool built with C#. I'm using C# 3.9 in this project.