Similar question to here but slightly different
Like the attached link I am trying to get log4net to output to multiple (x2) files.
As opposed to the link I am looking to have the same information sent to both files. For some reason only the first log file is being generated (Logs.log) and not the second (LogsTest.log)
Can anyone shine some light on this for me please?
<log4net>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="Logs.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<threshold value="INFO" />
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="INFO" />
<levelMax value="OFF" />
</filter>
<maxSizeRollBackups value="30" />
<maximumFileSize value="50MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger %P{url} %P{usr} %P{addr} – %message%newline" />
</layout>
</appender>
<appender name="RollingFileAppender1" type="log4net.Appender.RollingFileAppender">
<file value="LogsTest.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<threshold value="INFO" />
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="INFO" />
<levelMax value="OFF" />
</filter>
<maxSizeRollBackups value="30" />
<maximumFileSize value="50MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger %P{url} %P{usr} %P{addr} – %message%newline" />
</layout>
</appender>
<logger name="PlaceGen">
<level value="ALL" />
<appender-ref ref="RollingFileAppender" />
<appender-ref ref="RollingFileAppender1" />
</logger>
</log4net>
Would have been smart to have the local operator to restart the application first
Related
I wanted my log file to be create for each date and if the log got to be bigger then 100mb then it will create a new file. Below is my setting and it will not create a new file.
<log4net>
<root>
<level value="INFO" />
<appender-ref ref="FileAppender" />
</root>
<appender name="FileAppender" type="log4net.Appender.FileAppender">
<file value="D:\inetpub\wwwroot\COTTProduction\ServiceLogs\COTT.log" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="100MB" />
<datePattern value="_yyyyMMdd.log" />
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="INFO" />
<levelMax value="FATAL" />
</filter>
</appender>
</log4net>
I am using Log4Net within my project, and would like to configure it so that debug/info messages go to files specific to each class, and all error messages go to a central file.
Within my application, I have several "workers". I would like each worker to have its own log file to capture debug messages. If I get a debug message that isn't captured on a specific worker, I would like it to be logged to a central debug file. I would also like to have central error logging, where all errors from any of the workers are logged in the same file.
I am having difficulty figuring out the XML configuration to do this.
Here is the closest I have come:
<log4net>
<appender name="DebugLog" type="log4net.Appender.RollingFileAppender">
<file value="logs\debug.log" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="ddMMyyyy" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="FATAL" />
</filter>
</appender>
<appender name="ErrorLog" type="log4net.Appender.RollingFileAppender">
<file value="logs\error.log" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="ddMMyyyy" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline%stacktrace{1}%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="ERROR" />
<levelMax value="FATAL" />
</filter>
</appender>
<appender name="Worker1" type="log4net.Appender.RollingFileAppender">
<file value="logs\Worker1.log" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<datePattern value="ddMMyyyy" />
<maxSizeRollBackups value="100" />
<maximumFileSize value="100MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="INFO" />
</filter>
</appender>
<appender name="Worker2" type="log4net.Appender.RollingFileAppender">
<file value="logs\Worker2.log" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<datePattern value="ddMMyyyy" />
<maxSizeRollBackups value="100" />
<maximumFileSize value="100MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="INFO" />
</filter>
</appender>
<appender name="Worker3" type="log4net.Appender.RollingFileAppender">
<file value="logs\3.log" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<datePattern value="ddMMyyyy" />
<maxSizeRollBackups value="100" />
<maximumFileSize value="100MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="INFO" />
</filter>
</appender>
<root>
<level value="DEBUG" />
<appender-ref ref="DebugLog" />
<appender-ref ref="ErrorLog" />
</root>
<logger name="Worker1">
<level value='DEBUG'/>
<appender-ref ref="Worker1" />
</logger>
<logger name="Worker2">
<level value='DEBUG'/>
<appender-ref ref="Worker2" />
</logger>
<logger name="Worker3">
<level value='DEBUG'/>
<appender-ref ref="Worker3" />
</logger>
</log4net>
The first issue I have is that all messages written to Worker1's class, are written to the Debug.log file, and the Worker1.log file. I don't want them written to Debug.log if they are already written to Worker1.log.
I can get around this by changing the section, by adding additivity = false. In this case, it writes to the Worker1.log, and not the Debug.log file.
However, doing this prevents errors from being written to Error.log
What happens is that if I set additivity = "false" and log an error, it gets written to Worker1.log, but does not get written to Error.log.
Is there any way to have the additivity apply to just the debug/info messages, so that I can have Debug messages in Worker1.log, Error messages in Error.log, and any debug messages that aren't specific to a logger in the debug.log file?
You are right about setting additivity="false" to isolate the debug messages to Worker1.log.
To get the error messages of Worker1 back into Error.log you also have to include the ErrorLog appender in the Worker1 logger declaration, as shown below.
<logger name="Worker1" additivity="false">
<level value='DEBUG'/>
<appender-ref ref="Worker1" />
<appender-ref ref="ErrorLog" />
</logger>
Via this setup you overrule the rules as defined in root to use a custom Worker1 Appender for debug messages and the same Error Appenderfor error messages.
Issue: All the information that is logged is written twice in the file.
Please find the below configuration that I use:
I could observe the issue only when multiple loggers were introduced.
<root>
<level value="DEBUG" />
<appender-ref ref="LogFileAppender" />
<appender-ref ref="MemoryAppender"/>
<appender-ref ref="EventsFileAppender" />
</root>
<logger name="FileLogger">
<level value="DEBUG" />
<appender-ref ref="LogFileAppender" />
<appender-ref ref="MemoryAppender"/>
</logger>
<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender" >
<param name="File" value="C:\log-file.txt" />
<param name="AppendToFile" value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="5MB" />
<staticLogFileName value="true" />
<filter type="log4net.Filter.LoggerMatchFilter">
<LoggerToMatch value="FileLogger" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%date [%thread] %-5level - %message%newline" />
</layout>
</appender>
<appender name="MemoryAppender" type="log4net.Appender.MemoryAppender">
<filter type="log4net.Filter.LoggerMatchFilter">
<LoggerToMatch value="FileLogger" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
</appender>
<logger name="EventsLogger">
<level value="DEBUG" />
<appender-ref ref="EventsFileAppender" />
</logger>
<appender name="EventsFileAppender" type="log4net.Appender.RollingFileAppender" >
<param name="File" value="C:\ObjectServerEvents\ObjectServerEvents-file.txt" />
<param name="AppendToFile" value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="100MB" />
<staticLogFileName value="true" />
<filter type="log4net.Filter.LoggerMatchFilter">
<LoggerToMatch value="EventsLogger" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%date [%thread] %-5level - %message%newline" />
</layout>
</appender>
Can you spot the mistake in this? How to resolve this?
You are adding the appenders twice: once to the root element, and once to each logger.
Remove the appender declarations from either the root element or the loggers, and each event will only be logged once.
<root>
<level value="DEBUG" />
<appender-ref ref="LogFileAppender" />
<appender-ref ref="MemoryAppender"/>
<appender-ref ref="EventsFileAppender" />
</root>
<logger name="FileLogger">
<level value="DEBUG" />
</logger> <!-- etc -->
I want my logfile to end up like this :
2015-04-23.log (YYMMDD.log)
<root>
<level value="DEBUG" />
<appender-ref ref="RollingFileAppender" />
</root>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="logs\CTI\ServiceName" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="20MB" />
<staticLogFileName value="false" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %level %logger - %message%newline%exception" />
</layout>
</appender>
After running the code, the log file comes up as ServiceName_2015-04-23.log.2015-04-23.
What is the issue?
The appender should look like this:
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="logs\CTI\ServiceName\" />
<datePattern value="yyyy-MM-dd'.log'" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="20MB" />
<staticLogFileName value="false" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %level %logger - %message%newline%exception" />
</layout>
</appender>
The key is the datePattern where we add '.log' to the pattern.
Two years later... Better late than never.
You use rollingStyle=date, so log4net adds date in the end of file name.
You can find useful config examples for RollingFileAppender class here.
I need to configure logger to write messages to several appenders with different Log Levels.
For ex. I want RefreshDataService to log detailed info to TransportFileAppender and Warnings and Errors to RollingFileAppender.
Also, I'm using buffering to improve logging performance.
I setup FilteredFileLog appender to forward Warnings to FileLog->RollingFileAppender.
But for RefreshDataService logger, all log messages including debug and Info getting logged to FileLog.
Can you help me to configure the RefreshDataService logger to log only Warn+ messages to FileLog? Thanks.
Below is excerpt from my log4net config.
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="${TEMP}\logs\client\${ENV}\client.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="4096KB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level [%property{ENV}] [%property{UID}] %logger - %message%newline" />
</layout>
</appender>
<appender name="TransportAppender" type="log4net.Appender.RollingFileAppender">
<file value="${TEMP}\logs\client\${ENV}\client.comm.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="4096KB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
</appender>
<appender name="DetailedTransportLog" type="log4net.Appender.BufferingForwardingAppender">
<threshold value="DEBUG" />
<bufferSize value="200" />
<appender-ref ref="TransportAppender" />
</appender>
<appender name="FileLog" type="log4net.Appender.BufferingForwardingAppender">
<bufferSize value="20" />
<lossy value="false" />
<appender-ref ref="RollingFileAppender" />
</appender>
<appender name="FilteredFileLog" type="log4net.Appender.ForwardingAppender">
<threshold value="WARN" />
<appender-ref ref="FileLog" />
</appender>
<logger name="RefreshDataService" >
<level value="DEBUG" />
<appender-ref ref="FilteredFileLog" />
<appender-ref ref="DetailedTransportLog" />
</logger>
You can use a level range filter on the appender:
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="WARN" />
<levelMax value="FATAL" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
My understanding is that the Threshold property is used tell the appender to flush the buffer when messages of a certain level are logged. This way you can make for instance sure that errors are written immediately to the database.