In my Web app I want to have the ability to toggle text file logging on or off, is there a way within log4net for this to be accomplished?
Right now I'm doing this in my log4net.config file, but this makes me think it's going to log in both places all the time:
<appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
<param name="ApplicationName" value="Lending Service" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message %newline %exception" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="INFO"/>
<levelMax value="FATAL"/>
</filter>
</appender>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="mylogfile.txt"/>
<appendToFile value="true"/>
<rollingStyle value="Size"/>
<maxSizeRollBackups value="5"/>
<maximumFileSize value="10MB"/>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %level %logger - %message%newline%exception"/>
</layout>
</appender>
<root>
<level value="DEBUG"/>
<appender-ref ref="RollingFileAppender"/>
<level value="ALL"/>
<appender-ref ref="EventLogAppender" />
</root>
EDIT
I'm looking for a way to do this through a .config setting, whether it's something that needs to be added to the log4net.config or the web.config file.
I don't know about web.config, but if you add the below line into your appender for the log4net.config it should work.
<threshold value="OFF"/>
As long as the value is greater than the entry your sending, it won't show up in the log (i.e. value="WARN" won't log an entry for DEBUG/INFO.) Then you can change it to "OFF" to suppress any logging.
Related
This is configuration
<log4net debug="true">
<appender name="RFileAppender" type="log4net.Appender.RollingFileAppender, log4net">
<File value="logs/file.txt" />
<AppendToFile value="true" />
<DatePattern value="_yyyyMMdd" />
<RollingStyle value="Date" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%level %date ==> %message%newline" />
</layout>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="RFileAppender" />
</root>
<appender name="SmtpAppender" type="log4net.Appender.SmtpAppender">
<to value="mail" />
<from value="mail" />
<subject value="Service Error Log" />
<smtpHost value="SMTPServer.domain.com" />
<bufferSize value="512" />
<lossy value="true" />
<evaluator type="log4net.Core.LevelEvaluator">
<threshold value="ERROR"/>
</evaluator>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%newline%date [%thread] %-5level %logger [%property{NDC}] - %message%newline%newline%newline" />
</layout>
</appender>
<root>
<level value="Error" />
<appender-ref ref="SmtpAppender" />
</root>
</log4net>
This is the method I use to send the email
private void SendErrorLogByMail(string error)
{
mailLogger.Error(error);
}
I think it is the configuration, maybe something is missing or some wrong data but I don't know what, what did I do wrong? I put two appenders because the info and warning log levels must be written in the file, while the error levels in both the file and the mail
UPDATE
<log4net debug="true">
<appender name="RFileAppender" type="log4net.Appender.RollingFileAppender, log4net">
<File value="log.txt"/>
<AppendToFile value="true"/>
<DatePattern value="_yyyyMMdd"/>
<RollingStyle value="Date"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%level %date ==> %message%newline"/>
</layout>
</appender>
<root>
<level value="ALL"/>
<appender-ref ref="RFileAppender"/>
</root>
<appender name="SmtpAppender" type="log4net.Appender.SmtpAppender">
<to value="from" />
<from value="to" />
<subject value="Error Log" />
<bufferSize value="512" />
<smtpHost value="smtp.gmail.com" />
<port value="587" />
<authentication value="Basic" />
<username value="***" />
<password value="***" />
<lossy value="true" />
<evaluator type="log4net.Core.LevelEvaluator">
<threshold value="ERROR"/>
</evaluator>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%newline%date [%thread] %-5level %logger [%property{NDC}] - %message%newline%newline%newline" />
</layout>
</appender>
<root>
<level value="Error" />
<appender-ref ref="SmtpAppender" />
</root>
</log4net>
Now when log4net is configured this error is returned:
log4net: ERROR [SmtpAppender] ErrorCode: GenericFailure. Error occurred while sending e-mail notification.
System.Net.Mail.SmtpException: The SMTP server requires a secure connection or the client has not been authenticated. Server response: 5.7.0 Must issue a STARTTLS command first. v18sm36645763edx.30 - gsmtp
in System.Net.Mail.MailCommand.CheckResponse (SmtpStatusCode statusCode, String response)
in System.Net.Mail.MailCommand.Send (SmtpConnection conn, Byte [] command, String from)
in System.Net.Mail.SmtpTransport.SendMail (MailAddress sender, MailAddressCollection recipients, String deliveryNotify, SmtpFailedRecipientException & exception)
in System.Net.Mail.SmtpClient.Send (MailMessage message)
in log4net.Appender.SmtpAppender.SendEmail (String messageBody)
in log4net.Appender.SmtpAppender.SendBuffer (LoggingEvent [] events)
Look. I'm just seeing your configuration and did you try to change tag value for another host, like Gmail?
I don't have experience with log4net but sometimes when something is wrong to send an email, probably can be the SMTP host, port.
Make senses ?
I have a .Net 4.0 windows service application that uses log4net.
Here's my log4net config.
<log4net>
<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{Context}] - %message%newline" />
</layout>
</appender>
<appender name="ColorConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
<mapping>
<level value="ERROR" />
<foreColor value="Red, HighIntensity" />
</mapping>
<mapping>
<level value="FATAL" />
<foreColor value="Red, HighIntensity" />
</mapping>
<mapping>
<level value="WARN" />
<foreColor value="Blue, HighIntensity" />
</mapping>
<mapping>
<level value="INFO" />
<forecolor value="White, HighIntensity" />
</mapping>
<mapping>
<level value="DEBUG" />
<forecolor value="Green, HighIntensity" />
</mapping>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{Context}] - %message%newline" />
</layout>
</appender>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<appendToFile value="true" />
<datePattern value="yyyyMMdd" />
<file value="Logs/Server.log" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{Context}] - %message%newline" />
</layout>
<maximumFileSize value="10MB" />
<rollingStyle value="Composite" />
<staticLogFileName value="true" />
</appender>
<appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{Context}] - %message%newline" />
</layout>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="ColorConsoleAppender" />
<appender-ref ref="RollingFileAppender" />
</root>
</log4net>
Logging works as expected when the service starts up while using the exe that was built in debug mode (log files are created at the right file path), but doesn't work when it is using the exe built in release mode.
I've tried using a recompiled log4net dll for .Net 4.0 following the steps mentioned at this blog.. http://tseonet.blogspot.com/2010/07/making-log4net-run-on-net-40.html.
But, that didn't work either.
Any help is greatly appreciated.
I suggest to turn on internal debugging as explained here:
log4net - Appenders not working in IIS7.5
Thanks Deepu
adding [assembly: log4net.Config.XmlConfigurator(Watch = true)] to the assemblyInfo file worked for me
I stumbled upon the same issue today and after going through log4net docs did the following and it worked for me.
log4net.Config.XmlConfigurator.Configure();
Thought it will be worth sharing. Below is the logger class which uses log4net as provider
/// <summary>
/// Logger class using log4net library
/// </summary>
public class Log4NetLogger : ILogger
{
public Log4NetLogger(Type configType)
{
log4net.Config.XmlConfigurator.Configure();
this._logger = LogManager.GetLogger(configType);
}
}
For me assembly attribute was not an option as I wrapped logging functionality into a separate assembly where log4net was one of the providers.
I am using log4Net in my application which also uses nHibernate. Now my eventlogger is flooded with nHibernate messages which I want to suppress.
I have tried this but it did not work.
<log4net>
<appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
<param name="LogName" value="App Log" />
<param name="ApplicationName" value="DataService" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
</layout>
<filter type="log4net.Filter.LoggerMatchFilter">
<loggerToMatch value="NHibernate*" />
<acceptOnMatch value="false" />
</filter>
</appender>
<root>
<priority value="ALL"/>
<appender-ref ref="EventLogAppender"/>
</root>
</log4net>
You can add a logger for nHibernate and set up a different level:
<logger name="NHibernate" additivity="false">
<level value="WARN"/>
<appender-ref ref="RollingFileAppender"/>
</logger>
you should use
<loggerToMatch value="NHibernate.*" /> or <loggerToMatch value="NHibernate" />
not
<loggerToMatch value="NHibernate*" />
you can find details in regex rules
So, we had a little ETL app that had some issues with updates. Which were nicely solved in an afternoon sprint with nHibernate. But this app relied upon log4net to push logging output to a few different destinations based upon command line switches. Once we got nHibernate wrapped into the app, it ETL'd flawlessly. But the logging functions failed completely. From the debugger's point of view, any of our loggers have all log4net's levels disabled.
Here's the log4net config:
<log4net>
<appender name="RollingFile" type="log4net.Appender.RollingFileAppender">
<file value="import-" />
<staticLogFileName value="false" />
<appendToFile value="false" />
<rollingStyle value="Date" />
<maxSizeRollBackups value="5" />
<datePattern value="yyyyMMdd-HHmm".log"" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %-5level - %message%newline" />
</layout>
</appender>
<appender name="Console" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%-5level : %message%newline" />
</layout>
</appender>
<appender name="Email" type="log4net.Appender.SmtpAppender">
<to value="wwb#example.com" />
<from value="PeepsImporter#example.com" />
<subject value="Cte Importer Error" />
<smtpHost value="smtp.example.com" />
<bufferSize value="512" />
<lossy value="false" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%newline%date %-5level : %message%newline%newline%newline" />
</layout>
</appender>
<root>
<level value="ALL" />
</root>
<logger name="Console">
<level value="INFO" />
<appender-ref ref="Console" />
</logger>
<logger name="File">
<level value="INFO" />
<appender-ref ref="RollingFile" />
</logger>
<logger name="DebugConsole">
<level value="DEBUG" />
<appender-ref ref="Console" />
</logger>
<logger name="DebugFile">
<level value="DEBUG" />
<appender-ref ref="RollingFile" />
</logger>
<logger name="EmailErrors">
<level value="ERROR" />
<appender-ref ref="Email" />
</logger>
</log4net>
Not sure what other code would help, but I'm happy to post anything else from this app.
What version of NHibernate are you using? Builds older than 1.0-RC1 turned logging on internally. In 1.0-RC1 they changed this so you have to manually call log4net.XmlConfigurator.Configure(). This was done to give developers more control over logging.
You could try turning on the internal debugging in log4net: See this section in the following link:
"How do I enable log4net internal debugging?"
http://logging.apache.org/log4net/release/faq.html
I have enabled log4net and run my app which is giving an exception.
But the log file is empty.
Doesn't NHibernate log info about the exception???
Malcolm
You need to configure log4net. Just by adding log4net dll to the project doesn't log anything. You need to create appenders to specify where all the loggin should be directed to. Create a xml file like this one:
<log4net>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="Logs\Trace.log" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<maxSizeRollBackups value="30" />
<maximumFileSize value="1000KB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level - %message%newline" />
</layout>
<threshold value="DEBUG"/>
</appender>
<root>
<appender-ref ref="RollingFileAppender" />
</root>
</log4net>
...and configure it when starting up the application:
public static void Main()
{
var logconfig = new System.IO.FileInfo(PATH_TO_LOG_CONFIG);
if(logconfig.Exists)
{
log4net.Config.XmlConfigurator.ConfigureAndWatch(logconfig);
}
}