CODEWITHSUNDEEP
log4netlog4net-configuration
FreeG
FreeG

Reputation: 95

Problems with Log4net multiple logger to multiple files

log4net version: 1.2.13.0 Runtime Version: v4.0.30319

I've got some Problems with using multiple Loggers and Appenders. I have a root Logger with 3 Appenders which work well but when im configuring multiple other loggers log4net seems to only register the appenders from the last logger specified in the app.config.

If i put TaskSyncLogger as last logger entry TaskSyncAppender gets recognized If i put CalendarSyncLogger as last logger entry CalendarSyncLogger gets recognized

only the 3 appenders from the root logger and the appender from the last logger entry is listed in hierarchy.GetAppenders()

Hierarchy hierarchy = (log4net.Repository.Hierarchy.Hierarchy)LogManager.GetRepository();
var appenders = hierarchy.GetAppenders();

my app.config

<appender name="MainFileAppender" type="log4net.Appender.FileAppender">
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date %-5level %logger- %message%newline %exception" />
  </layout>
  <file value="Logs\logs.log" />
  <appendToFile value="true" />
  <lockingModel type="log4net.Appender.FileAppender+MinimalLock" /> 
</appender>
<appender name="DebugAppender" type="log4net.Appender.DebugAppender">
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date %-5level - %message%newline %exception" />
  </layout>
</appender>
<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date %-5level - %message%newline %exception" />
  </layout>
</appender>

<appender name="TaskSyncAppender" type="log4net.Appender.FileAppender">
  <appendToFile value="true"/>
  <file value="Logs\logsTask.log" />
  <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date %-5level %logger- %message%newline %exception" />
  </layout>
  <!--
  <filter type="log4net.Filter.LevelRangeFilter">
    <levelMin value="INFO" />
    <levelMax value="FATAL" />
    <filter type="log4net.Filter.DenyAllFilter" />
  </filter>
  -->
</appender>

<appender name="CalendarSyncAppender" type="log4net.Appender.FileAppender">
  <appendToFile value="true"/>
  <file value="Logs\logsCalendar.log" />
  <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date %-5level %logger- %message%newline %exception" />
  </layout>
  <!--
  <filter type="log4net.Filter.LevelRangeFilter">
    <levelMin value="INFO" />
    <levelMax value="FATAL" />
    <filter type="log4net.Filter.DenyAllFilter" />
  </filter>
  -->
</appender>

<root>
  <level value="All" />
  <appender-ref ref="MainFileAppender" />
  <appender-ref ref="DebugAppender" />
  <appender-ref ref="ConsoleAppender" />
</root>

<logger Name="CalendarSyncLogger" additivity="true">
  <level value="All"/>
  <appender-ref ref="CalendarSyncAppender"/>
</logger>

<logger Name="TaskSyncLogger" additivity="true">
  <level value="All"/>
  <appender-ref ref="TaskSyncAppender"/>
</logger>

further the TaskSyncAppender isn't writing anything the File gets created but it remains empty although the the MainFile Appender is writing the output.

im getting it like

public const string TaskSyncLogger = "TaskSyncLogger";

private static readonly ILog logTask = LogManager.GetLogger(LoggingStrings.TaskSyncLogger);

Upvotes: 1

Views: 358

Answers (1)

stuartd
stuartd

Reputation: 73303

I can reproduce this, and while I cannot be confident in saying it is definitely a bug, it is certainly unexpected.

You can work around it by adding this last logger to your file:

<logger Name="WillNotBeUsed">
  <level value="Off"/>
  <appender-ref ref="CalendarSyncAppender"/>
  <appender-ref ref="TaskSyncAppender"/>
</logger>

After that all five appenders are loaded.

Upvotes: 1

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