Log4Net & SeriLog missing tags

Instana's log monitoring supports several very useful default tags, some of these tags are sadly not filled in for the popular .NET (Framework) logging frameworks, see below. Please fill these tags such that we can actually use the log monitoring, without these tags it is almost impossible to use (we currently have to search for the exception in the log files of our applications).

Exception Message this tag is needed because now only the log message is present for Log4Net and often the useful info is present in the message of the exception that was attached to the log message. A log statement contains a messageTemplate and an exception, for example https://github.com/serilog/serilog/blob/dev/src/Serilog/ILogger.cs#L233.

Exception Type this tag is needed to distinguise expected exceptions (input validation etc, are caused by input given by an end-user) and not-expected exceptions (bugs, broken background jobs etc).

Exception StackTrace this tag is needed to find where in the code the problem occurred. And also very important to get the inner-exception (an exception is sometimes wrapped by another exception to add more info) because the most useful info is sometimes hidden there.

Log4Net

1. Exception Message tag is missing

2. Exception Type tag is missing

3. Exception StackTrace tag is missing

Serilog

1. Exception StackTrace tag is missing (the other two are present)