App Service went down automatically for 30minutes on 14Th July 4:30 to 4:45PM UTC

Uday Kasula 41 Reputation points

Prod App Service went down it shows http 500.30 error for 30minutes
Diagnose and solve problem says IO exception: Could not load file or assembly 'AutoMapper.Extensions.Microsoft.DependencyInjection but after 30minutes it automatically started working
we havenot changed any cofiguration in portal or no code changes

Can i know the reason for Web App downtime

Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
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  1. SnehaAgrawal-MSFT 17,486 Reputation points Microsoft Employee


    The issues caused due to Site management operations as there was a site management operation at 2022-07-14 16:18:07.92 and first 500.30 error started at timestamp 2022-07-14 16:18:42.8558132 and due to many site management operations in this 30 mins of timeframe which also includes swapping operations and after last update, website restart was done at 2022-07-14 16:46:41.21 and after the warmup process, site was up and running.

    Resolution: Its recommended for Health check feature, Auto heal and adding multiple instances which will help in maintaining healthy production applications.

    Please follow the best practices in The Ultimate Guide to Running Healthy Apps in the Cloud to make your app more resilient from any cloud platform events.

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