App Service diagnostics and logging in Azure - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Azure App Service diagnostics used for?

Azure App Service diagnostics helps identify and troubleshoot issues in your web apps by collecting logs, metrics, and error details.

beginner

Name two types of logs you can enable in Azure App Service.

You can enable Application Logging (for app-generated logs) and Web Server Logging (for HTTP request logs).

intermediate

How do you enable Application Logging in Azure App Service?

In the Azure portal, go to your App Service > Monitoring > App Service logs, then turn on Application Logging (Filesystem or Blob Storage).

intermediate

What is the purpose of the 'Diagnose and solve problems' blade in Azure App Service?

It provides guided troubleshooting tools and insights to quickly find and fix common issues affecting your app's health and performance.

intermediate

Where can you find the HTTP request logs after enabling Web Server Logging?

HTTP request logs are saved to the file system or Azure Blob Storage, depending on your configuration, and can be accessed via FTP or Azure Storage Explorer.

Which Azure App Service log type captures detailed app errors and trace messages?

A Web Server Logging

B Application Logging

C Detailed Error Messages

D Failed Request Tracing

Application Logging captures app-generated logs including errors and trace messages.

Where can you enable App Service diagnostics in the Azure portal?

A Under Diagnose and solve problems

B Under Monitoring > App Service logs

C Under Settings > Configuration

D Under Deployment Center

The 'Diagnose and solve problems' blade is where you access diagnostics tools.

What is the default retention period for logs stored on the file system in Azure App Service?

A 7 days

B 30 days

C 1 day

D Unlimited

Logs stored on the file system are retained for 7 days by default.

Which tool can you use to download logs from Azure Blob Storage?

A Azure DevOps

B Visual Studio Code

C Azure Storage Explorer

D Azure CLI

Azure Storage Explorer is a graphical tool to browse and download blobs.

What does enabling 'Failed Request Tracing' help you diagnose?

A Database connection issues

B App startup failures

C Deployment errors

D Slow HTTP requests and errors

Failed Request Tracing helps diagnose slow or failed HTTP requests.

Explain how to enable and access Application Logging in Azure App Service.

Think about the portal path and storage options.

Describe the purpose and benefits of the 'Diagnose and solve problems' feature in Azure App Service.

It’s like a helper tool for app problems.