https://pprakash.me/tags/azure-openai-service/ Recent content in Azure OpenAI Service on Technology Enlightened Hugo en &copy; <a href="https://github.com/p-prakash/">Prakash P</a> 2015 - 2023 Fri, 31 Jul 2026 16:00:00 +0100 https://pprakash.me/tech/2026/07/31/multi-region-ha-azure-content-understanding/ Fri, 31 Jul 2026 16:00:00 +0100 https://pprakash.me/tech/2026/07/31/multi-region-ha-azure-content-understanding/ <p>Azure Content Understanding and Azure OpenAI Service are regional services. A production document-processing workflow often cannot treat a regional endpoint, its model deployments, or its analyzer definitions as a single point of failure. In this post, we discuss a highly available solution built across multiple regions to handle regional failures.</p> <h2 id="architecture">Architecture</h2> <p><img src="https://pprakash.me/images/2026/07/azure-content-understanding-multi-region-ha.png" alt="Architecture diagram of implemented regional stacks and cross-region flows"></p> <p><em>Figure 1. Implemented regional stacks and cross-region flows.</em></p> <p>The diagram shows two distinct planes: solid lines represent synchronous request traffic, while dashed lines represent asynchronous analyzer reconciliation. This separation addresses two related resilience challenges: routing requests to a healthy Content Understanding backend and keeping analyzer configurations consistent across regions. API Management selects a local-first backend synchronously within each available gateway, while two queue-driven Azure Functions synchronize analyzers asynchronously.</p>