Mitigate 5XX error using Auto heal feature

Http 5xx error are common errors in Azure App services. There are several reasons that can lead to 5xx response. Some of them are:

1. Requests take long time to execute.

2. Application is experiencing high CPU and memory consumption.

3. Related to Application code issue.

4. Azure platform performed Infrastructure or File server upgrade in the instance.

Considering the HTTP 503 response issue can be mitigated by restarting the App Service to force the initialized behavior, so I think you can consider using the “Auto-Heal” feature:

1. Go to the “Diagnose and solve problems” à “Diagnostic Tools”

2. Select Auto Heal:

3. Enable and set up a rule as illustrated below:

4. Choose the operation as “Recycle process”, then the platform will help to restart the App Service if there are more than 10 HTTP 503 response within 1 minute:

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Ashish Sharma

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