How to configure Log4net for WCF Workflow Service

Question

I have a very simple WCF Workflow Service project with just 1 xamlx in it. XAMLX is also very simple with one receive receive activity and then calling an other xaml workflow.

Here is xamlx service:

My question is how can I configure Log4net in my xamlx service so that all the unhandled errors generated by subsequent Workflow can be logged to Event Log?

Answer 1

As I couldn't find any method which automatically logs all the unhandled errors. I have solved my problem by adding Try/Catch activity and adding some code activities to log the error.

To configure the Logger I added this [assembly: log4net.Config.XmlConfigurator(Watch = true)] to assembly.cs and then created 2 code activities.

One to get the logger:

  ILog logger = LogManager.GetLogger("LogName");
  return logger;

Second to Log the error:

  logger.Get(context).Error(ex.Get(context));

My Updated xamlx looks like below:

If anyone have any other better option, then please let me know. Thanks

Answer 2

You might want to take a look at Workflow Tracking and Tracing. Mainly on how to create your own TrackingParticipant where you've several TrackingRecords available to log. You can even create your own CustomTrackingRecord to be emitted by your custom activities.

Actually, you've already available an EtwTrackingParticipant that probably does the job you want, without using log4net. You can see here on how to configure it and access it's event data on Event Viewer.