Why are we seeing high number of errors per interval for a Servlet?

Document ID : KB000010780
Last Modified Date : 14/02/2018
Show Technical Document Details
Introduction:

For an application it is possible to see a high number of  errors per interval for a Servlet (See Image 1)
however ,  I don't see the corresponding errors in the error console (See Image 2) and the end user is also not seeing these errors logged.

Image 1: 
ErrorsPerIntervalMetric.png

Image 2: 

Error Console.png

Environment:
APM Java Tomcat Agent APM 10.5.2.15
Instructions:

Whereas the error detector needs to be enabled on agent side, it is mandatory to install ErrorDetector to get the feature availability "New Live Error Viewer" on the menu and the "Errors tab" into  both interfaces the "Workstation" and "Webview".

 

Additional Information: