title: Will Application Insights Sampling sample away exceptions?
body: <p>The application insights sampling documentation (<a href="https://docs.microsoft.com/en-us/azure/application-insights/app-insights-sampling" rel="nofollow noreferrer">https://docs.microsoft.com/en-us/azure/application-insights/app-insights-sampling</a>) states the following:</p>
  
  <p>"For example, if for a failed request your app sends additional telemetry items (such as exception and traces logged from this request), sampling will not split this request and other telemetry. It either keeps or drops them all together."</p>
  
  <p>It's hard to imagine but does this mean that some exceptions or better requests that caused an exception, might just get ignored and not logged if the sampling algorythm needs to reduce the amount of logging being done? I find it hard to place this in the correct context, just getting started with application insights and trying to figure out all the possibilities. I understand this is very valuable to filter out a percentage of telemetry for performance indicators etc, but for actual webapi requests for example..?</p>
  
  <p>I've read this question but my doubt still remains:
  <a href="https://stackoverflow.com/questions/43262046/azure-app-insights-sampling-itemcount">Azure App Insights Sampling (ItemCount)</a></p>