WCF 4.5 doesn't generate log file

Question

Hi,
Recently, I am using WCF 4.5 windows 7 for my testing of WCF appliation. When enable tracing, the WCF servce works fine, however, the WCF application doesn't generate the log file(
web_messages.svclog or web_tracelog.svclog).
Here are the configuration of the web.confi
g file:
<system.diagnostics>
<sources>
<source name="System.ServiceModel.MessageLogging" switchValue="警告,ActivityTracing">
<listeners>
<add type="System.Diagnostics.DefaultTraceListener" name="Default">
<filter type="" />
</add>
<add name="ServiceModelMessageLoggingListener">
<filter type="" />
</add>
</listeners>
</source>
<source propagateActivity="true" name="System.ServiceModel" switchValue="详细,ActivityTracing">
<listeners>
<add type="System.Diagnostics.DefaultTraceListener" name="Default">
<filter type="" />
</add>
<add name="ServiceModelTraceListener">
<filter type="" />
</add>
</listeners>
</source>
</sources>
<sharedListeners>
<add initializeData="e:\project\test\wcf_tutorial\webapp_consume_wcf\webapp_consume_wcf\web_messages.svclog"
type="System.Diagnostics.XmlWriterTraceListener, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
name="ServiceModelMessageLoggingListener" traceOutputOptions="Timestamp">
<filter type="" />
</add>
<add initializeData="e:\project\test\wcf_tutorial\webapp_consume_wcf\webapp_consume_wcf\web_tracelog.svclog"
type="System.Diagnostics.XmlWriterTraceListener, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
name="ServiceModelTraceListener" traceOutputOptions="Timestamp">
<filter type="" />
</add>
</sharedListeners>
<trace autoflush="true" />
</system.diagnostics>
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"></serviceHostingEnvironment>
<diagnostics wmiProviderEnabled="true" performanceCounters="All">
<messageLogging logEntireMessage="true" logMalformedMessages="true"
logMessagesAtServiceLevel="true" logMessagesAtTransportLevel="true" />
</diagnostics>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"></serviceHostingEnvironment>
<diagnostics wmiProviderEnabled="true" performanceCounters="All">
<messageLogging logEntireMessage="true" logMalformedMessages="true"
logMessagesAtServiceLevel="true" logMessagesAtTransportLevel="true" />
</diagnostics>
</system.serviceModel>
Regards

Answer 1

Hi Paul_PMA,
Based on this
MSDN document, trace files are not created without initially creating the log directory. Make sure that the directory for
web_messages.svclog or web_tracelog.svclog exists, or specify an alternate logging directory in the listener configuration. Please also mark sure that IIS has write permissions to the log file path.
For more information, please try to refer to the following articles:
#Configuring Message Logging:
https://msdn.microsoft.com/en-us/library/ms730064(v=vs.110).aspx .
#Simple Steps to Enable Tracing in WCF:
http://www.codeproject.com/Articles/420538/Simple-Steps-to-Enable-Tracing-in-WCF .
#How to enable wcf tracing and wcf message logging:
http://dotnetmentors.com/how-to-enable-wcf-tracing-and-wcf-message-loging.aspx .
Best Regards,
Amy Peng
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