log4j.properties and the access speed issue

emanuele.ornella · **Joined:** Fri May 05, 2006 11:27 am **Posts:** 8

I was able to start with NHibernate in just a couple of days. I'm happy about this so I assume I can propose it as access layaer for wrapping the DB in my company.
There is one issue still not resolved: the access time. It seems to be longer than ado.net immediate access, and that's resonable, but it seems too much long!
I was wondering if this is due also to the console.out.print that is produced and the log4net.xml to be wirtten.
I read about log4j logging system, but I do not found any explanation on how to enable or disable. I read about the log4j.properties file, but I have not included it on my VS solution. Moreover I was not able to find an example for NHibernate on the net too!

How can I disable the log to check the access speed, again?

Do you have any log4j.properties example that I can add to my project and try to disable it?

Thanks for any help,
ema

gert · **Joined:** Thu Jan 19, 2006 4:29 pm **Posts:** 348

emanuele.ornella wrote:

I read about log4j logging system, but I do not found any explanation on how to enable or disable. I read about the log4j.properties file, but I have not included it on my VS solution.

It is actually log4net logging system. You searched for wrong thing.

The log4net configuration is usually done trough <log4net> section in application configuration file (app.config or web.config)

Gert

emanuele.ornella · **Joined:** Fri May 05, 2006 11:27 am **Posts:** 8

Thanks gert!
there is a reason why I'm a newbi :-) I was wondering why in the net there was any example.

Anyway I found a similar post in codeguru asp.net forum
(http://www.codeguru.com/forum/showthread.php?t=376724)
but with no answer.

The immediate question is how can I STOP the log ? I never configure it to display anything, but it print out a lot of lines!

thanks,
ema

gert wrote:

emanuele.ornella wrote:

I read about log4j logging system, but I do not found any explanation on how to enable or disable. I read about the log4j.properties file, but I have not included it on my VS solution.

It is actually log4net logging system. You searched for wrong thing.

The log4net configuration is usually done trough <log4net> section in application configuration file (app.config or web.config)

Gert

gert · **Joined:** Thu Jan 19, 2006 4:29 pm **Posts:** 348

emanuele.ornella wrote:

The immediate question is how can I STOP the log ? I never configure it to display anything, but it print out a lot of lines!

Probably something like

Code:

 
  <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
  [..cut..]
  <!-- This section contains the log4net configuration settings -->
  <log4net>
    <!-- levels: DEBUG, INFO, WARN, ERROR, FATAL -->
    <root>
      <level value="ERROR"/>
    </root>
  </log4net>

in configuration file and

Code:

log4net.Config.XmlConfigurator.Configure();

in application initialization code should help.

Gert

emanuele.ornella · **Joined:** Fri May 05, 2006 11:27 am **Posts:** 8

Still not working damn!
Now I understood: in the app.config I have to add the log4net configuration tags.
You suggest me to place as priority ERROR so that only errors will be displayed.
I try to copy and past what I found in the web(http://wiki.nhibernate.org/display/NH/C ... et+Logging)

Code:

   <!-- This section contains the log4net configuration settings -->
   <log4net debug="false">

      <!-- Define some output appenders -->
      <appender name="trace" type="log4net.Appender.TraceAppender, log4net">
         <layout type="log4net.Layout.PatternLayout,log4net">
            <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] &amp;lt;%P{user}&amp;gt; - %m%n" />
         </layout>
      </appender>

      <appender name="console" type="log4net.Appender.ConsoleAppender, log4net">
         <layout type="log4net.Layout.PatternLayout,log4net">
            <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] &amp;lt;%P{user}&amp;gt; - %m%n" />
         </layout>
      </appender>

      <appender name="rollingFile" type="log4net.Appender.RollingFileAppender,log4net" >
         
         <param name="File" value="log.txt" />
         <param name="AppendToFile" value="true" />
         <param name="RollingStyle" value="Date" />
         <param name="DatePattern" value="yyyy.MM.dd" />
         <param name="StaticLogFileName" value="true" />

         <layout type="log4net.Layout.PatternLayout,log4net">
            <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] &amp;lt;%X{user}&amp;gt; - %m%n" />
         </layout>
      </appender>

      <!-- Setup the root category, add the appenders and set the default priority -->
      
      <root>
         <priority value="INFO" />
         <appender-ref ref="console" />
      </root>
   </log4net>

I also added the

Code:

log4net.Config.XmlConfigurator.Configure();

line on the application code.

But I recived an expetion:
Error: System.TypeInitializationException: The type initializer for 'NHibernate.Cfg.Configuration' threw an exception. ---> System.TypeInitializationException: The type initializer for 'log4net.Core.LoggerManager' threw an exception. ---> System.TypeInitializationException: The type initializer for 'log4net.Util.LogLog' threw an exception. ---> System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException: Unrecognized configuration section log4net. (c:\Project\RegistrazioniMagazzino\RegistrazioniMagazzino\bin\Debug\RegistrazioniMagazzino.vshost.exe.config line 30)
at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)
at System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors)
at System.Configuration.BaseConfigurationRecord.ThrowIfInitErrors()
at System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)

Then I deleted all the appender tags leaving only:

Code:

<!-- This section contains the log4net configuration settings -->
  <log4net debug="false">
       <root>
      <priority value="ERROR" />
      <appender-ref ref="console" />
    </root>
  </log4net>

But still have the same error.

If I remove all the log4net tags I receive no error (but I have the default inizialization from NHibernate as before so that I have it enable agian!)

Thanks for any other help you can give me.
ema

gert · **Joined:** Thu Jan 19, 2006 4:29 pm **Posts:** 348

emanuele.ornella wrote:

Still not working damn!
Now I understood: in the app.config I have to add the log4net configuration tags.

Yes. But be sure You have

Code:

  <configSections>
    ...
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
    ...
  </configSections>

also present in configuration file (The .Net configuration system is quite a picky animal...)

Gert

emanuele.ornella · **Joined:** Fri May 05, 2006 11:27 am **Posts:** 8

Thanks Gert!
I had this working now.
I copy & paste your line and got it work.
I had that line before but probably not so well written!

Thanks again!

But I still have in the Output window a lot of print out such as:

Code:

'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\System.Transactions\2.0.0.0__b77a5c561934e089\System.Transactions.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\System.EnterpriseServices\2.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded '9zl-nn5q', No symbols loaded.
'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded '4a39dswf', No symbols loaded.
'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded 'g2fr5wea', No symbols loaded.
'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded 'f59pgjms', No symbols loaded.
'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded '6d4z64ej', No symbols loaded.
'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded '06ylgftv', No symbols loaded.

Does it belong to log4net? At this time I'm not sure any more! And then: does it affect the performances?

thanks,
ema

gert · **Joined:** Thu Jan 19, 2006 4:29 pm **Posts:** 348

emanuele.ornella wrote:

Code:

'RegistrazioniMagazzino.vshost.exe' (Managed): Loaded '9zl-nn5q', No symbols loaded.

Does it belong to log4net? At this time I'm not sure any more! And then: does it affect the performances?

Those should belong to reflection optimization included in NHibernate. Slows down the startup, but should speed up overall perfomance.

Gert