Potential performance issue with exception monitoring in .NET Monitor 8.0.0

[schmittjoseph]

We've recently become aware that if InProcessFeatures is enabled in .NET Monitor 8.0.0, then the default configuration may lead to potential performance issues in monitored applications in certain scenarios.

Important

InProcessFeatures is not enabled by default in 8.0.0 so this issue only applies if it has been manually enabled.

For customers using 8.0.0 with InProcessFeatures enabled, you can mitigate this potential issue by toggling the DOTNETMONITOR_InProcessFeatures__Exceptions__Enabled configuration property to false.

JSON Configuration

{
  "InProcessFeatures": {
    "Enabled": true,
    "Exceptions": {
      "Enabled": false
    }
  }
}

Kubernetes Environment Variables

- name: DOTNETMONITOR_InProcessFeatures__Enabled
  value: "true"
- name: DOTNETMONITOR_InProcessFeatures__Exceptions__Enabled
  value: "false"