Log4Net configuring log level

Question

How do I make Log4net only log Info level logs  Is that even possible  Can you only set a threshold    This is what I have  and it logs Info and above as I would expect  Is there anything i can do to make it only log info    lt logger name  BrokerCollection Model XmlDocumentCreationTask  gt     lt appender-ref ref  SubmissionAppender   gt     lt level value  Info    gt   lt  logger gt

User · Answer

Yes   It is done with a filter on the appender    Here is the appender configuration I normally use  limited to only INFO level    lt appender name  RollingFileAppender  type  log4net Appender RollingFileAppender  gt     lt file value    HOMEDRIVE   PI Logging  PI ECSignage   COMPUTERNAME  log    gt     lt appendToFile value  true    gt     lt maxSizeRollBackups value  30    gt     lt maximumFileSize value  5MB    gt     lt rollingStyle value  Size    gt       lt  --A maximum number of backup files when rolling on date time boundaries is not supported  -- gt     lt staticLogFileName value  false    gt     lt lockingModel type  log4net Appender FileAppender MinimalLock    gt     lt layout type  log4net Layout PatternLayout  gt           lt param name  ConversionPattern  value   date yyyy-MM-dd HH mm ss ffff    2thread   -5level  20 20type 1   -25method at  -4line    -30 30logger   message newline    gt     lt  layout gt      lt filter type  log4net Filter LevelRangeFilter  gt           lt levelMin value  INFO    gt           lt levelMax value  INFO    gt     lt  filter gt   lt  appender gt

User · Answer

If you would like to perform it dynamically try this   using System  using System Collections Generic  using System Text  using log4net  using log4net Config  using NUnit Framework   namespace ExampleConsoleApplication     enum DebugLevel   int          Fatal Msgs   0        Fatal Error Msgs   1        Fatal Error Warn Msgs   2        Fatal Error Warn Info Msgs   3       Fatal Error Warn Info Debug Msgs   4         class TestClass         private static readonly ILog logger   LogManager GetLogger typeof TestClass         static void Main   string   args               TestClass objTestClass   new TestClass            Console WriteLine     START             int shouldLog   4    CHANGE THIS FROM 0 TO 4 integer to check the functionality of the example         0 -- prints only FATAL messages          1 -- prints FATAL and ERROR messages          2 -- prints FATAL   ERROR and WARN messages          3 -- prints FATAL    ERROR   WARN and INFO messages          4 -- prints FATAL    ERROR   WARN   INFO and DEBUG messages         string srtLogLevel   String Empty         switch  shouldLog                  case  int DebugLevel Fatal Msgs             srtLogLevel    FATAL             break          case  int DebugLevel Fatal Error Msgs            srtLogLevel    ERROR             break          case  int DebugLevel Fatal Error Warn Msgs             srtLogLevel    WARN             break          case  int DebugLevel Fatal Error Warn Info Msgs             srtLogLevel    INFO              break          case  int DebugLevel Fatal Error Warn Info Debug Msgs             srtLogLevel    DEBUG              break           default            srtLogLevel    FATAL             break                 objTestClass SetLogingLevel   srtLogLevel            objTestClass LogSomething             Console WriteLine     END HIT A KEY TO EXIT            Console ReadLine             eof method            lt summary gt          Activates debug level           lt  summary gt           lt sourceurl gt http   geekswithblogs net rakker archive 2007 08 22 114900 aspx lt  sourceurl gt      private void SetLogingLevel   string strLogLevel              string strChecker    WARN INFO DEBUG ERROR FATAL           if  String IsNullOrEmpty   strLogLevel      true    strChecker Contains   strLogLevel      false          throw new Exception     The strLogLevel should be set to WARN   INFO   DEBUG                log4net Repository ILoggerRepository   repositories   log4net LogManager GetAllRepositories              Configure all loggers to be at the debug level        foreach  log4net Repository ILoggerRepository repository in repositories                  repository Threshold   repository LevelMap  strLogLevel            log4net Repository Hierarchy Hierarchy hier    log4net Repository Hierarchy Hierarchy repository          log4net Core ILogger   loggers   hier GetCurrentLoggers             foreach  log4net Core ILogger logger in loggers                         log4net Repository Hierarchy Logger logger   Level   hier LevelMap  strLogLevel                               Configure the root logger        log4net Repository Hierarchy Hierarchy h    log4net Repository Hierarchy Hierarchy log4net LogManager GetRepository           log4net Repository Hierarchy Logger rootLogger   h Root        rootLogger Level   h LevelMap  strLogLevel               private void LogSomething                 region LoggerUsage       DOMConfigurator Configure       tis configures the logger        logger Debug    Here is a debug log            logger Info        and an Info log            logger Warn        and a warning            logger Error        and an error            logger Fatal        and a fatal error             endregion LoggerUsage              eof class      eof namespace    The app config    lt  xml version  1 0  encoding  utf-8    gt   lt configuration gt       lt configSections gt           lt section name  log4net                   type  log4net Config Log4NetConfigurationSectionHandler  log4net    gt       lt  configSections gt       lt log4net gt           lt appender name  LogFileAppender  type  log4net Appender FileAppender  gt               lt param name  File  value  LogTest2 txt    gt               lt param name  AppendToFile  value  true    gt               lt layout type  log4net Layout PatternLayout  gt                   lt param name  Header  value   Header   r n    gt                   lt param name  Footer  value   Footer   r n    gt                   lt param name  ConversionPattern  value   d   t   -5p  c  m n    gt               lt  layout gt           lt  appender gt            lt appender name  ColoredConsoleAppender  type  log4net Appender ColoredConsoleAppender  gt               lt mapping gt                   lt level value  ERROR    gt                   lt foreColor value  White    gt                   lt backColor value  Red  HighIntensity    gt               lt  mapping gt               lt layout type  log4net Layout PatternLayout  gt                   lt conversionPattern value   date   thread   -5level  logger   property NDC   -  message newline    gt               lt  layout gt           lt  appender gt             lt appender name  AdoNetAppender  type  log4net Appender AdoNetAppender  gt               lt connectionType value  System Data SqlClient SqlConnection  System Data  Version 1 2 10 0  Culture neutral  PublicKeyToken b77a5c561934e089    gt               lt connectionString value  data source ysg initial catalog DBGA DEV integrated security true persist security info True     gt               lt commandText value  INSERT INTO  DBGA DEV   ga   tb Data Log    Date   Thread   Level   Logger   Message   VALUES   log date   thread   log level   logger   message     gt                lt parameter gt                   lt parameterName value   log date    gt                   lt dbType value  DateTime    gt                   lt layout type  log4net Layout PatternLayout  value   date yyyy - MM - dd HH   mm   ss   fff     gt               lt  parameter gt               lt parameter gt                   lt parameterName value   thread    gt                   lt dbType value  String    gt                   lt size value  255    gt                   lt layout type  log4net Layout PatternLayout  value   thread    gt               lt  parameter gt               lt parameter gt                   lt parameterName value   log level    gt                   lt dbType value  String    gt                   lt size value  50    gt                   lt layout type  log4net Layout PatternLayout  value   level    gt               lt  parameter gt               lt parameter gt                   lt parameterName value   logger    gt                   lt dbType value  String    gt                   lt size value  255    gt                   lt layout type  log4net Layout PatternLayout  value   logger    gt               lt  parameter gt               lt parameter gt                   lt parameterName value   message    gt                   lt dbType value  String    gt                   lt size value  4000    gt                   lt layout type  log4net Layout PatternLayout  value   messag2e    gt               lt  parameter gt           lt  appender gt           lt root gt               lt level value  INFO    gt               lt appender-ref ref  LogFileAppender    gt               lt appender-ref ref  AdoNetAppender    gt               lt appender-ref ref  ColoredConsoleAppender    gt           lt  root gt       lt  log4net gt   lt  configuration gt    The references in the csproj file    lt Reference Include  log4net  Version 1 2 10 0  Culture neutral  PublicKeyToken 1b44e1d426115821  processorArchitecture MSIL  gt     lt SpecificVersion gt False lt  SpecificVersion gt     lt HintPath gt          Log4Net log4net-1 2 10 bin net 2 0 release log4net dll lt  HintPath gt   lt  Reference gt   lt Reference Include  nunit framework  Version 2 4 8 0  Culture neutral  PublicKeyToken 96d09a1eb7f44a77  processorArchitecture MSIL    gt

User · Answer

Within the definition of the appender  I believe you can do something like this    lt appender name  AdoNetAppender  type  log4net Appender AdoNetAppender  gt       lt filter type  log4net Filter LevelRangeFilter  gt           lt param name  LevelMin  value  INFO   gt           lt param name  LevelMax  value  INFO   gt       lt  filter gt           lt  appender gt

User · Answer

Use threshold   For example       lt appender name  RollingFileAppender  type  log4net Appender RollingFileAppender  gt           lt threshold value  WARN   gt           lt param name  File  value  File log    gt           lt param name  AppendToFile  value  true    gt           lt param name  RollingStyle  value  Size    gt           lt param name  MaxSizeRollBackups  value  10    gt           lt param name  MaximumFileSize  value  1024KB    gt           lt param name  StaticLogFileName  value  true    gt           lt layout type  log4net Layout PatternLayout  gt               lt param name  Header  value   Server startup  amp  13  amp  10     gt               lt param name  Footer  value   Server shutdown  amp  13  amp  10     gt               lt param name  ConversionPattern  value   d  m n    gt           lt  layout gt       lt  appender gt       lt appender name  EventLogAppender  type  log4net Appender EventLogAppender   gt           lt threshold value  ERROR   gt           lt layout type  log4net Layout PatternLayout  gt               lt conversionPattern value   date   thread -  message newline    gt           lt  layout gt       lt  appender gt       lt appender name  ConsoleAppender  type  log4net Appender ConsoleAppender  gt           lt threshold value  INFO   gt           lt layout type  log4net Layout PatternLayout  gt               lt param name  ConversionPattern  value   d   thread   m n    gt           lt  layout gt       lt  appender gt    In this example all INFO and above are sent to Console  all WARN are sent to file and ERRORs are sent to the Event-Log

User · Answer

you can use log4net Filter LevelMatchFilter  other options can be found at log4net tutorial - filters  in ur appender section add   lt filter type  log4net Filter LevelMatchFilter  gt       lt levelToMatch value  Info    gt       lt acceptOnMatch value  true    gt   lt  filter gt    the accept on match default is true so u can leave it out but if u set it to false u can filter out log4net filters

[log4net] Log4Net configuring log level

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