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List:       log4net-dev
Subject:    [jira] Created: (LOG4NET-253) GetLogger creates rolling files even
From:       "Yves Bastiand (JIRA)" <jira () apache ! org>
Date:       2010-04-07 9:40:33
Message-ID: 945309035.39261270633233440.JavaMail.jira () brutus ! apache ! org
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GetLogger creates rolling files even for the unreferenced files
---------------------------------------------------------------

                 Key: LOG4NET-253
                 URL: https://issues.apache.org/jira/browse/LOG4NET-253
             Project: Log4net
          Issue Type: Bug
          Components: Appenders
    Affects Versions: 1.2.10
         Environment: Windows XP
            Reporter: Yves Bastiand


Hi,
I have a C# solution that contains three executables. I have each of these three \
executables sharing the same log4net configuration file. At startup of each of the \
executable, they retrieve a logger (one logger per executable, as per configuration \
file further below). When one of the executable performs Log.GetLogger(<loggerName>), \
it creates all the rolling files instead of only the one rolling file that is \
referred to as appender-ref in the executable's logger configuration.

For instance, when I startup my sending daemon executable, it performs \
Log.GetLogger("SendingDaemonLogger") which creates 3 files  Log/RuleScheduler.txt, \
Log/NotificationGenerator.txt and Log/NotificationSender.txt  instead of only the \
desired Log/NotificationSender.txt.

Then when I startup another of the executables, for instance the rule scheduler \
daemon, this other process cannot write in Log/RuleScheduler.txt because it has been \
created and locked by the sending daemon process.

I am guessing that there may be three different solutions to my problem:
1. The GetLogger should only create the rolling file appenders that are referenced in \
the config 2. I should have one config file per executable, this way each config file \
could list only one rolling file appender and starting each of the executable would \
not create the rolling files of the other daemons. I am however reluctant to do this \
because some of the configuration (SMTP appender, console appender) is shared between \
the daemons and I don't want to have duplicate copies to maintain. Unless there is a \
way to have a config file including another one? 3. Maybe there is a way to configure \
the rolling file so that concurrent access across processes is allowed? This solution \
still isn't perfect in my opinion.

Thanks in advance for your help!

My configuration file is below:


<?xml version="1.0" encoding="utf-8" ?>
<log4net>
  <appender name="RuleSchedulerFileAppender" \
type="log4net.Appender.RollingFileAppender">  <file value="Log/RuleScheduler.txt"/>
    <threshold value="INFO"/>
    <appendToFile value="true"/>

    <!-- For each month, keep up to 100 files of 10Mb within the month-->
    <rollingStyle value="Composite" />
    <datePattern value="yyyyMM" />
    <maxSizeRollBackups value="100" />
    <maximumFileSize value="10MB" />

    <!-- The latest log file has the greatest number -->
    <countDirection value="1" />

    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%ndc [%thread] %date %-4timestamp %-5level %message \
(%method(), L%line %class)  %newline%exception"/>  </layout>
  </appender>

  <appender name="NotificationGeneratorFileAppender" \
type="log4net.Appender.RollingFileAppender">  <file \
value="Log/NotificationGenerator.txt"/>  <threshold value="INFO"/>
    <appendToFile value="true"/>

    <!-- For each month, keep up to 100 files of 10Mb within the month-->
    <rollingStyle value="Composite" />
    <datePattern value="yyyyMM" />
    <maxSizeRollBackups value="100" />
    <maximumFileSize value="10MB" />

    <!-- The latest log file has the greatest number -->
    <countDirection value="1" />

    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%ndc [%thread] %date %-4timestamp %-5level %message \
(%method(), L%line %class)  %newline%exception"/>  </layout>
  </appender>

  <appender name="NotificationSenderFileAppender" \
type="log4net.Appender.RollingFileAppender">  <file \
value="Log/NotificationSender.txt"/>  <threshold value="INFO"/>
    <appendToFile value="true"/>

    <!-- For each month, keep up to 100 files of 10Mb within the month-->
    <rollingStyle value="Composite" />
    <datePattern value="yyyyMM" />
    <maxSizeRollBackups value="100" />
    <maximumFileSize value="10MB" />

    <!-- The latest log file has the greatest number -->
    <countDirection value="1" />

    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%ndc [%thread] %date %-4timestamp %-5level %message \
(%method(), L%line %class)  %newline%exception"/>  </layout>
  </appender>

  <appender name="DebugConsoleAppender" \
type="log4net.Appender.ColoredConsoleAppender">  <threshold value="ALL"/>
    <mapping>
      <level value="FATAL" />
      <foreColor value="White" />
      <backColor value="Red, HighIntensity" />
    </mapping>
    <mapping>
      <level value="ERROR" />
      <backColor value="Red, HighIntensity" />
    </mapping>
    <mapping>
      <level value="WARN" />
      <backColor value="Yellow, HighIntensity" />
    </mapping>
    <mapping>
      <level value="DEBUG" />
      <backColor value="Green" />
    </mapping>
    <mapping>
      <level value="INFO" />
      <foreColor value="White" />
    </mapping>
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%ndc [%thread] %date %-4timestamp %-5level %logger \
%message (%method(), L%line %class)  %newline%exception" />  </layout>
  </appender>

  <appender name="SmtpAppender" type="log4net.Appender.SmtpAppender,log4net">
    <threshold value="ERROR" />
    <to value="biopacs-notification@bioclinica.com" />
    <from value="biopacs.notification.server.logger@bioclinica.com" />
    <subject value="Alert in BioPACS notification server" />
    <smtpHost value="biomail04.biodoma04.bi.corp" />
    <bufferSize value="0" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%ndc [%thread] %date %-4timestamp %-5level %logger \
%message (%method(), L%line %class)  %newline%exception" />  </layout>
  </appender>

  <root>
    <level value="ALL" />
  </root>

  <logger name="RuleSchedulerLogger" additivity="true">
    <level value="ALL"/>
    <appender-ref ref="SmtpAppender"/>
    <appender-ref ref="DebugConsoleAppender"/>
    <appender-ref ref="RuleSchedulerFileAppender"/>
  </logger>

  <logger name="NotificationGeneratorLogger" additivity="true">
    <level value="ALL"/>
    <appender-ref ref="SmtpAppender"/>
    <appender-ref ref="DebugConsoleAppender"/>
    <appender-ref ref="NotificationGeneratorFileAppender"/>
  </logger>

  <logger name="SendingDaemonLogger" additivity="true">
    <level value="ALL"/>
    <appender-ref ref="SmtpAppender"/>
    <appender-ref ref="DebugConsoleAppender"/>
    <appender-ref ref="NotificationSenderFileAppender"/>
  </logger>

</log4net>


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