Azure Cosmos DB is a globally distributed database with limitless elastic scale. To take advantage of elastic scale, you first need to choose a partition key. Kirill Gavrylyuk stops by Azure Friday to talk with Scott Hanselman about the choice of partition key, and how to use the new metrics charts to troubleshoot a poor partition key choice (e.g., "hot partitions").
For more tips like this, check out the working remotely playlist at www.youtube.com/FoetronAcademy. Also, if you need any further assistance then you can raise a support ticket (https://cloud.foetron.com/) and get it addressed.