Hi Bill!

Thanks for your answer!

My case is exactly the one of the l4ndash link you passed. I am using 
"RollingFileAppender" through the ILog interface.

"
[...]

//Class field
private static ILog log = LogManager.GetLogger(typeof(RSFNMessageBatchService));

[...]

//In the class constructor
log4net.GlobalContext.Properties["LogName"] = 
AppSettings.GetValue("logFileName");
log4net.Config.XmlConfigurator.ConfigureAndWatch(new 
System.IO.FileInfo(AppSettings.GetValue("log4NetConfigFile")));
log.Logger.Repository.Configured = true;

[...]

//Log call
log.Debug(mensagemLog);

[...]

"

In another file I just got, The trimmed message and the trimming message came 
from the same thread! That eliminates the Thread Safety hypothesis.

Any ideas?

Thanks,
Rafael Thomé Guimarães
Analista-Programador
DO-CBCN / DI-CRAD - MIDDLEWARE
' +55 11 2565-7006
* [email protected]<mailto:[email protected]>
[cid:[email protected]]

www.bmfbovespa.com.br<http://www.bmfbovespa.com.br/>


[cid:[email protected]]Evite imprimir. Colabore com o Meio 
Ambiente!



From: Bill Sorensen [mailto:[email protected]]
Sent: quinta-feira, 5 de setembro de 2013 19:16
To: Rafael Thome Guimaraes; Log4NET User
Subject: RE: Thread Safety in Log

One of our developers (Eric Borman) researched this recently, so I'll quote him:

The short answer is that log4net is thread safe, the appenders are not. log4net 
takes this into account and ensures proper serialization of logging events. So 
as long as you use the logging API and don't access the appender directly you 
are safe.

http://stackoverflow.com/questions/1519211/multithread-safe-logging
http://www.l4ndash.com/Log4NetMailArchive%2Ftabid%2F70%2Fforumid%2F1%2Fpostid%2F17279%2Fview%2Ftopic%2FDefault.aspx

However,
That does not make them process safe. So using a web garden will cause 
collisions.

http://hectorcorrea.com/blog/log4net-thread-safe-but-not-process-safe

Thanks,
_________________________________
Bill Sorensen
Patterns, Platforms and Practices
Integrated DNA Technologies
www.idtdna.com<http://www.idtdna.com>

From: Rafael Thome Guimaraes [mailto:[email protected]]
Sent: Thursday, September 05, 2013 3:49 PM
To: Log4NET User
Subject: Thread Safety in Log

Hi all!

Anyone knows if Log4Net is Thread Safe or I need to put locks in the calls?

Tks,
Rafael Thomé Guimarães

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