I've got a service using logging producing an error message but then logging successfully to a rolling file. If the service account runs as an admin, the error doesn't happen. As soon as I remove administrative rights from the service account, an error happens again. No specific information is given helping to identify the error cause.
> Message: Tracing to LogSource 'General' failed. Processing for other sources will continue. See summary information below for more information. Should this problem persist, stop the service and check the configuration file(s) for possible error(s) in the configuration of the categories and sinks.
Summary for Enterprise Library Distributor Service:
======================================
-->
Message:
Timestamp: 1/12/2015 8:55:33 PM
Message: Service started
Category: General
Priority: 1
EventId: 1
Severity: Start
Title:
Machine: DVNSB1
App Domain: NServiceBus.Hosting.Windows.WindowsHost, NServiceBus.Host, Version=6.0.0.0, Culture=neutral, PublicKeyToken=***
ProcessId: 1488
Process Name: [my process name]
Thread Name:
Win32 ThreadId:3572
Extended Properties:
--> MachineName: [my machine name]
--> TimeStamp: 1/12/2015 8:55:33 PM
--> FullName: Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
--> AppDomainName: NServiceBus.Hosting.Windows.WindowsHost, NServiceBus.Host, Version=6.0.0.0, Culture=neutral, PublicKeyToken=9fc386479f8a226c
--> WindowsIdentity: [domain]\[service account name]
Exception Information Details:
======================================
Exception Type: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Data: System.Collections.ListDictionaryInternal
TargetSite: Boolean UpdateRollingInformationIfNecessary()
HelpLink: NULL
Source: Microsoft.Practices.EnterpriseLibrary.Logging
HResult: -2147467261
StackTrace Information Details:
======================================
at Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.RollingFlatFileTraceListener.StreamWriterRollingHelper.UpdateRollingInformationIfNecessary()
at Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.RollingFlatFileTraceListener.TraceData(TraceEventCache eventCache, String source, TraceEventType eventType, Int32 id, Object data)
at Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.AsynchronousTraceListenerWrapper.<>c__DisplayClassd.<TraceData>b__b(TraceListener tl)
Here is configuration:
```
<loggingConfiguration name="" tracingEnabled="true" defaultCategory="General">
<listeners>
<add name="Event Log Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FormattedEventLogTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
source=Publisher" formatter="Text Formatter"
log="" machineName="." traceOutputOptions="None" filter="Information"
asynchronous="true" />
<add name="Email Trace Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.EmailTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.EmailTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
toAddress="address@domain.com" fromAddress="from@myApp"
subjectLineStarter="(DevDeployment) Publisher"
subjectLineEnder=" " smtpServer="[mySmtp]" formatter="Email Formatter"
traceOutputOptions="Callstack" filter="Warning" asynchronous="true" />
<add name="Rolling Flat File Trace Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.RollingFlatFileTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.RollingFlatFileTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
rollInterval="Day" asynchronous="true" />
</listeners>
<formatters>
<add type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
template="Timestamp: {timestamp(local)}{newline}
Message: {message}{newline}
Category: {category}{newline}
Priority: {priority}{newline}
EventId: {eventid}{newline}
Severity: {severity}{newline}
Title:{title}{newline}
Machine: {localMachine}{newline}
App Domain: {localAppDomain}{newline}
ProcessId: {localProcessId}{newline}
Process Name: {localProcessName}{newline}
Thread Name: {threadName}{newline}
Win32 ThreadId:{win32ThreadId}{newline}
Extended Properties: {dictionary({key} - {value}{newline})}"
name="Text Formatter" />
<add type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
template="Timestamp: {timestamp(local)}{newline}
Message: {message}{newline}
Category: {category}{newline}
Machine: {localMachine}{newline}
App Domain: {localAppDomain}{newline}
Process Name: {localProcessName}{newline}
Extended Properties: {dictionary({key} - {value}{newline})}"
name="Email Formatter" />
</formatters>
<categorySources>
<add switchValue="All" name="General">
<listeners>
<add name="Event Log Listener" />
<add name="Email Trace Listener" />
<add name="Rolling Flat File Trace Listener" />
</listeners>
</add>
</categorySources>
<specialSources>
<allEvents switchValue="All" name="All Events" />
<notProcessed switchValue="All" name="Unprocessed Category">
<listeners>
<add name="Email Trace Listener" />
</listeners>
</notProcessed>
<errors switchValue="All" name="Logging Errors & Warnings">
<listeners>
<add name="Event Log Listener" />
<add name="Email Trace Listener" />
<add name="Rolling Flat File Trace Listener" />
</listeners>
</errors>
</specialSources>
</loggingConfiguration>
```
Any pointer on what I can look at?
Thanks
Comments: I've figured it out. The service account didn't have modify rights to the folder where the log file was.
What confused me was the fact that the file had log entries in it. Apparently, the account had __create__ rights but no __modify__ rights. So the new file was created with some initial log entries and that is what I saw. When the service was trying to add to the existing file, it failed due to lack of modify rights.