Every evening, around the same time, azure app service plan CPU spikes above 90%

Jeremy 1 Reputation point
2022-01-19T22:39:03.057+00:00

Every evening, around the same time, my app service plan's CPU spikes above 90%. Otherwise, it is around 20-30%. I have looked through all the app services on the plan and nothing is spiking, only the plan. It lasts around 30 minutes, and is at 11:30pm to be specific. Is there a process that is triggering this from our settings? It is a pay-as-you-go P1v2 linux plan.

Thank you

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. Grmacjon-MSFT 16,766 Reputation points
    2022-01-20T23:39:32.987+00:00

    Hi @Jeremy ,

    Thanks for bringing this to our attention. We are sorry you're facing this issue. When did you start noticing the increase in CPU usage?

    Here are a few things you can try if you haven't already:
    -Can you please try scaling up your app service plan.
    -Enabling Auto Heal in the Portal: On your Linux app, click Diagnose and Solve problems > Diagnostic Tools > Auto-Heal.
    -Use Process list and minidump API to look at the various counters in the various processes running in your site. This will help you determine what process is increasing CPU. Search for total_cpu_time/user_cpu_time/privileged_cpu_time.

    • Use the High CPU analysis tool in the Diagnose and solve problems blade of the portal to dig further into what might be causing the issue.

    167031-azcup-usage.png

    If the issue persists please let us know.

    Best,
    Grace

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