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App services are hosted on Azure App Service plans that define the compute resources that you need to be able to run a web app. The compute resources, also known as instances, can occasionally become unavailable. This video helps you to identify such issues, and explains how to resolve them. From improving load balancing to moving to an entirely new set of instances, you'll be well equipped to resolve instance-related issues by applying these techniques.
For more information about the methods that are described in this video, plus additional methods to maintain high availability for Azure App Services, see The Ultimate Guide to Running Healthy Apps in the Cloud - Azure App Service.
If you have questions or need help, create a support request, or ask Azure community support. You can also submit product feedback to Azure feedback community.
Documentation
Open-source technologies FAQs - Azure
Get answers to frequently asked questions about open-source technologies in Azure App Service.
Video:Troubleshoot Temporary Storage on Azure App Service - Azure
How to troubleshoot temporary storage on Azure App Service
Troubleshoot with Diagnostics - Azure App Service
Learn how you can troubleshoot problems with your app in Azure App Service by using the diagnostics tool in the Azure portal.
Training
Module
Troubleshoot Web App Down Scenarios with App Service Diagnostics - Training
Utilize Web App Down, Crash Monitoring, and Ask Genie for troubleshooting. Use these tools to monitor application and platform availability, identify unhandled exceptions, capture memory dumps and callstack, and find areas of investigation and diagnostics.
Certification
Microsoft Certified: Azure Developer Associate - Certifications
Build end-to-end solutions in Microsoft Azure to create Azure Functions, implement and manage web apps, develop solutions utilizing Azure storage, and more.