If you have worked any with Azure Cosmos DB you are well aware of Request Units, or RUs. What exactly are RUs and how do they work? The cost of all database operations is normalized by Azure Cosmos DB and is expressed by Request Units (or RUs, for short). You can think of RUs per second as…
In a recent article I wrote about how one possible implementation of the repository pattern using the Microsoft.Azure.Cosmos.Table SDK. This article mirrors that article, except this time around I used the Microsoft.Azure.Cosmos SDK. So if you are interested in getting a better understanding, please read that first article prior to checking out the code at…
To get a better understanding of the Cosmos DB Change, Event Grid, retry and fail over logic, I decided to build a system that would respond to changes in a Cosmos DB, send events to an Azure Event Grid, which in turn would forward the events to subscribers. I broke this article in to three…
During periods of peak transactions Cosmos may return a 429 Status Code – Too Many Requests, which means the collection has exceeded the provisioned throughput limit (RUs) and that you should retry the request after the server specified retry after duration. I want to setup alerting on both an Azure Function and the underlying Cosmos…
