Skip to content

Tracks Drills Topics Technologies Tech stacks Skill areas

Tracks Drills Topics

Loading

Aporeon interview preparation

About Privacy Terms

Azure .NET Production Debugging

Startup & Release Failures

App Service startup failures, slot swap incidents, warm-up timeouts, runtime mismatches, resource spikes, weak logs, and live mitigation choices.

7 drillsPractice one at a timeOrdered pathDebugging scenarioArchitecture scenario

Recommended start

API Will Not Start

Diagnose a .NET API that fails to start on Azure App Service after a deployment.

Medium~10 minStep 1 of 7

Practice this drill Choose another

Search

7 of 7 shown

1API Will Not StartRecommended startDiagnose a .NET API that fails to start on Azure App Service after a deployment.Debugging scenarioMedium~10 min.NETApplication InsightsASP.NET CorePractice 2

Practice order

7 drillsOne at a time

1API Will Not StartUp next / Medium / ~10 min
2500 After Slot SwapMedium / ~10 min
3Swap Warm-up TimeoutMedium / ~10 min

500 After Slot SwapInvestigate production HTTP 500 errors that start immediately after a deployment slot swap.Debugging scenarioMedium~10 min.NETApplication InsightsASP.NET Core

Practice

3Swap Warm-up TimeoutDiagnose a deployment slot swap that fails because the target app does not warm up successfully.Debugging scenarioMedium~10 min.NETApplication InsightsASP.NET CorePractice

4Runtime MismatchIdentify a failed App Service deployment caused by a mismatched .NET runtime or publish target.Debugging scenarioEasy~8 min.NETApplication InsightsASP.NET CorePractice

5CPU or Memory SpikeInvestigate resource spikes on App Service after a new .NET API release.Debugging scenarioMedium~10 min.NETApplication InsightsASP.NET CorePractice

6No Useful LogsImprove diagnosis when App Service log stream does not show enough information during an incident.Debugging scenarioEasy~8 min.NETApplication InsightsASP.NET CorePractice

7Hotfix vs RollbackReason through mitigation choices during a live App Service production incident.Architecture scenarioHard~12 min.NETApplication InsightsASP.NET CorePractice

4Runtime Mismatch

Easy / ~8 min

5CPU or Memory SpikeMedium / ~10 min

6No Useful LogsEasy / ~8 min

7Hotfix vs RollbackHard / ~12 min

Startup & Release Failures - Azure .NET Production Debugging | Aporeon