Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
I was getting app insights logging and metrics, but re-published and changed the app plan and no longer get metrics
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(172.8, 37%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDR%3C/text%3E%3C/svg%3E)
Dave Roberts | Pinnacle Systems
0
Reputation points
I have a azure web app which had appinsights enabled and was producing logs (trace, requests, performance counters etc), and I could use Metrics to produce nice graphs.
Then, at 1pm UTC on 17th Dec, I re-published (From VS - have an issue with pipeline publish)
and down-scaled the app service plan from P2V3 to P1V3 (as metrics were showing under-utilized Cpu and memory).
Since this time I am seeing nothing in appinsights trace, request, performance counters etc
altho Trace table does have "StopProfiler triggered." and "StartProfiler triggered.".
And metrics graphs are empty after 1:20pm UTC on 17th.
The webapp is NewPinnPilot-server, as is its appinsights
NB. My previous deployment was also from VS for the same reason, and appinsights was working fine after that.
Azure App Service
{count} votes
-
Dave Roberts | Pinnacle Systems 0 Reputation points
2025-12-18T16:55:51.2233333+00:00 I've now managed a deployment from devops pipeline (fixed my service connector), but app insights still broken
-
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(236.8, 68%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBY%3C/text%3E%3C/svg%3E)
Bharath Y P 2,825 Reputation points Microsoft External Staff Moderator2025-12-18T19:35:08.46+00:00 Hello Dave Roberts , It sounds like your Azure web app's Application Insights stopped sending metrics after you changed your app service plan and republished the app. Here are a few steps you can take to troubleshoot and possibly resolve the issue:
- Check the Application Insights Configuration: Make sure that the Application Insights configuration in your app is still intact after the republish. This includes ensuring that the instrumentation key is correctly set.
- Verify App Service Plan: Since you down-scaled your plan from P2V3 to P1V3, confirm that your current plan still supports the necessary metrics and logging features. Note that metrics should be available for Basic, Standard, and Premium tiers, which includes the P1V3 plan.
- Check Retention Policies: Metrics are retained for a maximum of 93 days, and if the application was not sending data during that time, you might see gaps. Ensure that the metrics you're trying to view fall within this retention period.
- Evaluate Logs and Traces: Investigate any logs or traces that might yield clues. The "StopProfiler triggered." and "StartProfiler triggered." entries you're seeing could indicate a potential configuration issue or a restart event that might affect metric logging.
- Diagnose Issues with Performance: Go to the "Diagnose and solve problems" blade in the Azure Portal and look for any issues related to High CPU or Memory that might prevent metrics from being sent.
- Quota Limit: Check if you've hit your quota for Application Insights. If so, you may need to upgrade your plan or investigate if sampling settings are limiting the amount of data being collected.
- Deployment: Since you mentioned that you managed a deployment from a DevOps pipeline, consider checking if anything was altered during the deployment process that could affect Application Insights.
If none of these resolve the issue, here are a few follow-up questions that might help narrow things down:
- When you republished, did you make any changes to the Application Insights configuration in your application settings?
- Are you able to see any metrics or logs in Application Insights console, such as in the 'Failures' or 'Performance' tabs?
- Can you confirm if any other parts of your Application Insights setup such as telemetry transmission are functioning properly?
- Have there been any recent changes in your Azure account or service behavior, such as hitting resource limits or billing issues?
Let me know how it goes, and I hope this gets you back on track!
References:
Sign in to comment
Sign in to answer