Troubleshooting: Enabling logging

RavenDB has extensive support for logging, enabling you to figure out exactly what is going on in the server.
By default, logging is turned off, but it can be easily enabled by creating a file called NLog.config in the base directory of a server (remember to restart your server).

Sample log file

<nlog xmlns="http://www.nlog-project.org/schemas/NLog.netfx35.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<targets>
		<target 
			xsi:type="AsyncWrapper"
			name="AsyncLog">

			<target xsi:type="SplitGroup">
				<!-- create log files with a max size of 256 MB -->
				<target 
					name="File" 
					xsi:type="File"    
					archiveAboveSize="268435456"
					fileName="${basedir}\Logs\${shortdate}.log">
					<layout xsi:type="CsvLayout">
						<column name="time" layout="${longdate}" />
						<column name="logger" layout="${logger}"/>
						<column name="level" layout="${level}"/>
						<column name="database" layout="${mdc:item=database}"/>
						<column name="threadid" layout="${threadid}" />
						<column name="message" layout="${message}" />
						<column name="exception" layout="${exception:format=tostring}" />
					</layout>
				</target>
			</target>
		</target>
	</targets>
	<rules>
		<!-- supported levels: Off, Fatal, Error, Warn, Info, Debug, Trace -->
 				<logger name="Raven.*" writeTo="AsyncLog" minlevel="Debug" />
 				<logger name="*Rachis*" writeTo="AsyncLog" minlevel="Debug" />
	</rules>
</nlog>

Remarks