How to achieve good cost/performance with Azure Cosmos DB elasticity

on YouTube ↗14m

" summary

Shows how to cut wasted RU spend by enabling the preview Dynamic scaling so autoscale scales each region and partition independently instead of to the hottest one; demo uses East US2/West US2 with a shopping cart (provisioned 10,000 RUs autoscale) and shows per-region deltas as cost savings. Demonstrates partition key impact: date key wastes capacity (50,000 RUs provisioned but only ~10,000 RUs usable) versus device ID hitting near 50,000. Covers partition merge via CLI/PowerShell what‑if to collapse five physical partitions into one (≈4GB) after downsizing.

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" chapters (4)

1. 0:00Introduction
2. 1:29Azure Portal
3. 5:20Partition Key
4. 8:46Partition Merge

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