Why are my exceptions not being logged with ServiceStack NLog? - servicestack

Question

Given this NLog config file:
<extensions>
<add assembly="Seq.Client.NLog"/>
</extensions>
<variable name="ServiceName" value="LO.Leads.Processor"/>
<targets async="true">
<target name="seq" xsi:type="Seq" serverUrl="http://mywebsite">
<property name="ThreadId" value="${threadid}" as="number" />
<property name="MachineName" value="${machinename}" />
</target>
<target name="file" xsi:type="File"
layout="${longdate}|${logger}|${level}|${threadid}|${message}"
fileName="C:\LogFiles\Leads\Processor\Processor.log"
archiveFileName="C:\LogFiles\Leads\Processor\Processor.{##}.log"
archiveEvery="Day"
archiveNumbering="Rolling"
maxArchiveFiles="45"
concurrentWrites="true"/>
<target name="debugger" xsi:type="Debugger"
layout="${logger}:${message}"/>
<target name="console" xsi:type="Console"
layout="${logger}:${level}:${threadid}:${message}" />
</targets>
<rules>
<logger name="*" minlevel="Info" writeTo="seq" />
<logger name="*" minlevel="Error" writeTo="file" />
<logger name="*" minlevel="Debug" writeTo="debugger" />
<logger name="*" minlevel="Debug" writeTo="console" />
</rules>
and this code block:
public class Program
{
static Program()
{
LogManager.LogFactory = new NLogFactory();
}
public static void Main()
{
HostFactory.Run(x =>
{
x.Service<ProcessorAppHost>(s =>
{
s.ConstructUsing(name => new ProcessorAppHost());
s.WhenStarted(ah =>
{
ah.Init();
ah.Start("http://*:8088/");
"Message processor listening at http://localhost:8088 ".Print();
});
s.WhenStopped(ah => ah.Dispose());
});
x.RunAsLocalSystem();
x.SetDescription("Processes all messages for the Leads application.");
x.SetDisplayName("Leads Message Processor");
x.SetServiceName("LOLeadsProcessor");
});
}
}
//MQHandlers
mqServer.RegisterHandler<LeadInformation>(m =>
{
try
{
var db = container.Resolve<IFrontEndRepository>();
db.SaveMessage(m as Message);
}
catch (Exception exception)
{
_log.Error("This is the only text logged", exception);
}
return ServiceController.ExecuteMessage(m);
});
and this exception
and here is the output from the 'file' logger
2014-11-11 10:06:53.9179|ProcessorAppHost|Error|24|This is the only text logged
Any idea about how to get the overloaded version of Error to work correctly?
Thank you,
Stephen

Answer 1

${message} contains the message of your exception, which is "This is the only text logged".
Take a look at the exception layout renderer.
layout="${longdate}|${logger}|${level}|${threadid}|${message}|${exception}"

Answer 2

Have you told ServiceStack to use NLog anywhere? e.g. before initializing your AppHost:
LogManager.LogFactory = new ServiceStack.Logging.NLogger.NLogFactory();
new AppHost().Init();