You can configure log4net anywhere - in main service EXE, in DLL which really
does the job.... The only condition is to configure logging system before its
first use. You can create Init() method somewhere in Logutil.dll to configure
logging system and call it during application startup.
If there is problem to configure logging using app.config file, try to use the
second way using separate config file to check if it works - if not, you have
probably error in code related to config file location.
R
________________________________
From: Jeegnesh Sheth [mailto:[EMAIL PROTECTED]
Sent: Monday, October 06, 2008 2:23 PM
To: Log4NET User
Subject: RE: Log4net in a windows service
Radovan,
LogUtil.dll
This has some custom logging as well as log4net dll reference and uses
a custom appender to log. This is where I perform
Myservice.exe has the following dll's that it uses
- Dosomething.dl -à uses Logutil.dll and is included as a
reference.
- Myservice.exe.app.config
From your information, I assume I should do this in LogUtil.dll and in
the default cstor of Logutil, I should obtain the path to the
myservice.exe.app.config path and set it.
log = LogManager.GetLogger(typeof(LogUtil)); in the cstor
Myservice.exe does not need to do any logging, only DoSomething library
needs to perform the logging.
The error I get is a generic .Net framework error showing all the
assemblies which caused the error which may be due to versioning but the logs
do not indicate this. So I did a clean install and that error was no longer the
case but then it came down to just a system violation error each time I try to
perform xmlconfigurator.configure() in the default cstor of the Myservice.
Thanks
From: Radovan Raszka [mailto:[EMAIL PROTECTED]
Sent: Saturday, October 04, 2008 4:32 PM
To: Log4NET User
Subject: RE: Log4net in a windows service
I configure log4net in main service class constructor. What kind of
crash have you met - any exception (what?) ?
public class IPservice : ServiceBase
{ ...
public IPservice()
{
InitializeComponent();
this.CanPauseAndContinue = false;
this.CanShutdown = true;
this.CanHandleSessionChangeEvent = false;
this.AutoLog = false;
this.ServiceName = IPservice.SrvName;
XmlConfigurator.Configure();
log = LogManager.GetLogger(typeof(IPservice));
}
protected override void OnStart(string[] args){ ...}
protected override void OnStop() {...}
}
________________________________
From: Jeegnesh Sheth [mailto:[EMAIL PROTECTED]
Sent: Friday, October 03, 2008 10:36 PM
To: Log4NET User
Subject: RE: Log4net in a windows service
Radovan,
Myservice.exe has the following:
Default cstor
A main entry point into process, named main
Onstart and onstop methods
If I place the XMlConfiguartor.configure() in any of the
methods above, my applications keeps crashing. Is there something I am missing?
I am trying to use your first solution.
Many thanks
From: Radovan Raszka [mailto:[EMAIL PROTECTED]
Sent: Friday, October 03, 2008 3:58 PM
To: Log4NET User
Subject: RE: Log4net in a windows service
Ok, there is also dependency on where log4net is set up.
Examples in my last mail works, if log4net is configured from
Myservice.exe (not from DLL), and config is stored in Myservice.exe.config (you
add app.config to the project, but Visual studio copies this file to the output
folder as <projectname>.exe.config, what is correct)
If configuration is done from DLL, then logutil.DLL.config
probably can not be used (at least it didn't work for me and I was told that
application file is always searched as <processname>.exe.config), so save
config into Myservice.exe.config or use second example.
Radovan
________________________________
From: Jeegnesh Sheth [mailto:[EMAIL PROTECTED]
Sent: Friday, October 03, 2008 9:22 PM
To: Log4NET User
Subject: RE: Log4net in a windows service
Radovan,
This is how my application is set up
LogUtil.dll
This has some custom logging as well as log4net dll
reference and uses a custom appender to log
Myservice.exe has the following dll's that it uses
- Logutil.dll
- Dosomething.dl
- Myservice.exe.app.config
Dosomthing.dll instantiates logutil.dll to write the
logs.
I tried putting your xmlconfigurator.configure in
logutil.dll and that did not work
I then tried placing it in dosomething.dll which did
not work
Placing it in myservice.exe did not produce anything
Thoughts/ suggestions?
From: Radovan Raszka [mailto:[EMAIL PROTECTED]
Sent: Friday, October 03, 2008 10:41 AM
To: Log4NET User
Subject: RE: Log4net in a windows service
there are 2 option:
1/ XmlConfigurator.Configure();
this configures log4net using app.config file, which
must be in this form:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net"
type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<appSettings>
....
</appSettings>
<log4net>
....
</log4net>
</configuration>
This is probably best solution as you have only one
config file for both application and log4net.
2/ configure log4net using extra XML file
XmlConfigurator.Configure(new
System.IO.FileInfo(GetAppPath() + "log4net.xml"))
.....
public string GetAppPath()
{
string myPath =
System.Reflection.Assembly.GetExecutingAssembly().Location;
int i = myPath.LastIndexOf('\\');
return myPath.Remove(i + 1);
}
Both solutions works well with service, but when
log4net config is changed, you must restart your service.
