Operation could destabilize the runtime

[CommunityUser]

Hi AppDynamics Team

I have just installed AppDynamics Lite (64 bit) for a very standard ASP.NET web application on IIS 7 - and immediately encountered the "Operation could destabilize the runtime".

The only clue that Googling provided was that other users had experienced a similar issue for ASP.NET applications that use the log4net.dll logging library - which is what is also used in our application.

Please advise work arounds for this issue - thank you.

[Raunak_Mohanty]

Hi,

Please disable log4net instrumentation and let us know if you are still seeing the issue.

Instruction provided below:

1.) Please add the following line into the "application.config" in the "<AppDynamics Installation Directory>\Machine Agent\Configuration" directory under <instrumentation> section

Line to add: 
<instrumentor name="log4netInstrumentor" disable="true"/>

Note: Add this line to the other instrumentor entries in the existing <instrumentation> section

2.) Save the changes

Restart the service.

Let us know if you still face issues.

Thanks,

Raunak

[CommunityUser]

Thank you - will try modifying the configuration of AppDynamics.

However, it would be easier for us  is the configuration off AppDynamics was maintained in the default configuration and we could modify the configuration of the specific application. Please advise if this alternative approach is also possible. Thank you.