Azure Monitor
An Azure service that is used to collect, analyze, and act on telemetry data from Azure and on-premises environments.
Reached the trace writing limit of 100 events per minute
![](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(28.799999999999997, 93%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EWR%3C/text%3E%3C/svg%3E)
Wiesinger Richard
11
Reputation points
I have a .net core 3.1 web app deployed to an azure app service sending AppServiceAppLogs to a Log Analytics Workspace. This configured via Monitoring > Diagnostic Settings
This works but I get a maximum of 100 log messages per minute written to log analytics.
An additional warning log message is written: `
Azure Monitor
{count} votes
-
![](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(92.8, 3%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
Bryan Scheurman 6 Reputation points Microsoft Employee2022-03-01T18:52:53.013+00:00 My team is seeing the same warning on .NET 6 as well. We also found this in the docs under the Managing your data volume section:
Throttling: Throttling limits the data rate to 32,000 events per second, averaged over 1 minute per instrumentation key.
32,000 events pers second is also what is indicated in the Azure Monitor Service Limits documentation, which is confusing and contradicts the "100 per minute" warning.
Any help/answers on this would be very useful.
-
Wiesinger Richard 11 Reputation points
2022-04-15T12:28:22.09+00:00 I have created a post in the product idea forum. Maybe you have time to upvote it there?
https://feedback.azure.com/d365community/idea/cb20fb1e-b6bc-ec11-a81b-6045bd796569 -
![](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(310.4, 92%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDK%3C/text%3E%3C/svg%3E)
Divya Konasani 21 Reputation points2022-06-16T14:22:13.27+00:00 Has there been any resolution on this? We are also facing the same issue "app has reached the trace writing limit of 100 events per minute"
-
![](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(249.60000000000002, 39%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESM%3C/text%3E%3C/svg%3E)
SwathiDhanwada-MSFT 18,996 Reputation points Moderator2022-06-16T19:38:37.46+00:00 @Wiesinger Richard @Divya Konasani @Bryan Scheurman App Service Product Group team we confirmed that they are aware of this limitation and currently, we don't have an ETA to increase the quota related to the 100 logs per minute to be logged at the App Services.
-
Divya Konasani 21 Reputation points
2022-06-16T20:01:28.25+00:00 @SwathiDhanwada-MSFT thank you for following up.
I have couple of questions:
1. Is every log statement treated a trace event 2. And is this the same behavior for app service logs writing to storage account?Am also wondering if there are any alternatives for short term while the team comes up with a solution, as this is impacting our capability to proactively alert issues with our app.
Also since this issue is impacting many customers will MSFT priortize this bug fix
Thanks and Regards,
Divya -
SwathiDhanwada-MSFT 18,996 Reputation points Moderator
2022-07-06T06:21:28.51+00:00 - Trace telemetry (in Application Insights) represents printf style trace statements that are text-searched. Log4Net, NLog, and other text-based log file entries are translated into instances of this type. The trace does not have measurements as an extensibility.
- From this document, maximum telemetry items per batch is 64000. This limit is specified at app service rather than application insights. I assume that same behavior will be noticed for in case of storage accounts.
As of now, there is no workaround for it. However, this has been notified to product team and we don't have any ETA for now.
-
![](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(99.2, 5%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPE%3C/text%3E%3C/svg%3E)
Pavlo Emerziian 0 Reputation points2023-07-13T10:03:25.03+00:00 Is there any solution for this meanwhile?
-
![](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(313.6, 89%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ED4%3C/text%3E%3C/svg%3E)
Daniel-4204 105 Reputation points2025-08-22T20:33:01.3433333+00:00 Still a problem in August 2025.
Sign in to comment
Sign in to answer