I am using below config file for log generation
<configuration>
<configSections>
<section name="log4net" type="System.Configuration.IgnoreSectionHandler" />
</configSections>
<log4net>
<appender name="TestLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="${ALLUSERSPROFILE}////Logs//Test.log" />
<appendToFile value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline"/>
</layout>
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="5MB" />
</appender>
<root>
<level value="ALL"/>
<appender-ref ref="TestLogFileAppender"/>
</root>
<logger additivity="false" name="TestLogger">
<appender-ref ref="TestLogFileAppender"/>
</logger>
</log4net>
</configuration>
My expectation is to get the log file in below format
Current Log file name Test.log.
When it reaches to 5MB, expecting back up file name as below
Test_1.bak
:
"
:
:
Test_10.bak
Related
I have created a lognet library using .Net Core 6.0.
The library class has the following initialization.
public static class MyLogger
{
private static readonly ILog logger = LogManager.GetLogger("");
static MyLogger()
{
log4net.Config.XmlConfigurator.Configure();
}
}
In my console application's app.config has the following settings,
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
</configSections>
<log4net>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="C:\\Logs\\Test.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="5" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %level %logger - %message%newline" />
</layout>
</appender>
<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender" >
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
</appender>
<root>
<level value="Info" />
<level value="Warn" />
<appender-ref ref="FileAppender" />
</root>
</log4net>
</configuration>
I research didn't help me to resolve the issue. Thanks for your help.
Change your root config to use an existing appender:
<appender-ref ref="RollingFileAppender" />
I'm working on windows service. Recently added log4net dll to log all the activities but the problem is how can I stop creating new log file everyday? I don't need new log file everyday. All I need is common "OverallLog" file.In configuration I have set up two log files. One captures the overall log and another captures log for each run.
also can anyone explain what does maxsizerollbackups do?
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<log4net>
<appender name ="RollingFile" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="%property{OverallLog}"/>
<PreserveLogFileNameExtension value="true" />
<staticLogFileName value="true" />
<appendToFile value="true" />
<maxSizeRollBackups value="90" />
<!--dateTimeStrategy
type="log4net.Appender.RollingFileAppender" /-->
<!--text formatted log4net logging-->
<!--<layout type="log4net.Layout.PatternLayout">
-->
<!--check conversion patterns from
https://logging.apache.org/log4net/-->
<!--
-->
<!--<conversionPattern value="%utcdate{ABSOLUTE} UTC %c{1} - %m%n"
/>-->
<!--
<conversionPattern value="%date [%thread] %-5level %logger -
%message%newline" />
</layout>-->
<!--json formatted log4net logging-->
<layout type="log4net.Layout.SerializedLayout, log4net.Ext.Json">
<decorator type="log4net.Layout.Decorators.StandardTypesDecorator,
log4net.Ext.Json"/>
<member value="date:date" />
<member value="level:level" />
<member value="logger:logger" />
<member value="message:messageObject" />
<member value="exception:exception" />
<member value="customer|%property{CustomerName}" />
<member value="liner|%property{LinerName}" />
<member value="format|%property{FormatName}" />
</layout>
</appender>
!--Summary log--!
<appender name="Summary" type="log4net.Appender.FileAppender">
<file type="log4net.Util.PatternString" value="%property{SummaryLog}"/>
<appendToFile value="true" />
<layout type="log4net.Layout.SerializedLayout, log4net.Ext.Json">
<decorator type="log4net.Layout.Decorators.StandardTypesDecorator,
log4net.Ext.Json"/>
<member value="date:date" />
<member value="level:level" />
<member value="logger:logger" />
<member value="message:messageObject" />
<member value="exception:exception" />
</layout>
</appender>
<root>
<!--Options are "ALL", "DEBUG", "INFO", "WARN", "ERROR", "FATAL" and
"OFF".-->
<level value="DEBUG" />
<appender-ref ref="RollingFile" />
<appender-ref ref="Summary" />
</root>
<logger additivity="false" name="Summary">
<level value="DEBUG"/>
<appender-ref ref="Summary" />
</logger>
</log4net>
</configuration>
I am using Log4Net within my project, and would like to configure it so that debug/info messages go to files specific to each class, and all error messages go to a central file.
Within my application, I have several "workers". I would like each worker to have its own log file to capture debug messages. If I get a debug message that isn't captured on a specific worker, I would like it to be logged to a central debug file. I would also like to have central error logging, where all errors from any of the workers are logged in the same file.
I am having difficulty figuring out the XML configuration to do this.
Here is the closest I have come:
<log4net>
<appender name="DebugLog" type="log4net.Appender.RollingFileAppender">
<file value="logs\debug.log" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="ddMMyyyy" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="FATAL" />
</filter>
</appender>
<appender name="ErrorLog" type="log4net.Appender.RollingFileAppender">
<file value="logs\error.log" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="ddMMyyyy" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline%stacktrace{1}%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="ERROR" />
<levelMax value="FATAL" />
</filter>
</appender>
<appender name="Worker1" type="log4net.Appender.RollingFileAppender">
<file value="logs\Worker1.log" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<datePattern value="ddMMyyyy" />
<maxSizeRollBackups value="100" />
<maximumFileSize value="100MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="INFO" />
</filter>
</appender>
<appender name="Worker2" type="log4net.Appender.RollingFileAppender">
<file value="logs\Worker2.log" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<datePattern value="ddMMyyyy" />
<maxSizeRollBackups value="100" />
<maximumFileSize value="100MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="INFO" />
</filter>
</appender>
<appender name="Worker3" type="log4net.Appender.RollingFileAppender">
<file value="logs\3.log" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<datePattern value="ddMMyyyy" />
<maxSizeRollBackups value="100" />
<maximumFileSize value="100MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="INFO" />
</filter>
</appender>
<root>
<level value="DEBUG" />
<appender-ref ref="DebugLog" />
<appender-ref ref="ErrorLog" />
</root>
<logger name="Worker1">
<level value='DEBUG'/>
<appender-ref ref="Worker1" />
</logger>
<logger name="Worker2">
<level value='DEBUG'/>
<appender-ref ref="Worker2" />
</logger>
<logger name="Worker3">
<level value='DEBUG'/>
<appender-ref ref="Worker3" />
</logger>
</log4net>
The first issue I have is that all messages written to Worker1's class, are written to the Debug.log file, and the Worker1.log file. I don't want them written to Debug.log if they are already written to Worker1.log.
I can get around this by changing the section, by adding additivity = false. In this case, it writes to the Worker1.log, and not the Debug.log file.
However, doing this prevents errors from being written to Error.log
What happens is that if I set additivity = "false" and log an error, it gets written to Worker1.log, but does not get written to Error.log.
Is there any way to have the additivity apply to just the debug/info messages, so that I can have Debug messages in Worker1.log, Error messages in Error.log, and any debug messages that aren't specific to a logger in the debug.log file?
You are right about setting additivity="false" to isolate the debug messages to Worker1.log.
To get the error messages of Worker1 back into Error.log you also have to include the ErrorLog appender in the Worker1 logger declaration, as shown below.
<logger name="Worker1" additivity="false">
<level value='DEBUG'/>
<appender-ref ref="Worker1" />
<appender-ref ref="ErrorLog" />
</logger>
Via this setup you overrule the rules as defined in root to use a custom Worker1 Appender for debug messages and the same Error Appenderfor error messages.
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);
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.
I need to configure logger to write messages to several appenders with different Log Levels.
For ex. I want RefreshDataService to log detailed info to TransportFileAppender and Warnings and Errors to RollingFileAppender.
Also, I'm using buffering to improve logging performance.
I setup FilteredFileLog appender to forward Warnings to FileLog->RollingFileAppender.
But for RefreshDataService logger, all log messages including debug and Info getting logged to FileLog.
Can you help me to configure the RefreshDataService logger to log only Warn+ messages to FileLog? Thanks.
Below is excerpt from my log4net config.
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="${TEMP}\logs\client\${ENV}\client.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="4096KB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level [%property{ENV}] [%property{UID}] %logger - %message%newline" />
</layout>
</appender>
<appender name="TransportAppender" type="log4net.Appender.RollingFileAppender">
<file value="${TEMP}\logs\client\${ENV}\client.comm.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="4096KB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
</layout>
</appender>
<appender name="DetailedTransportLog" type="log4net.Appender.BufferingForwardingAppender">
<threshold value="DEBUG" />
<bufferSize value="200" />
<appender-ref ref="TransportAppender" />
</appender>
<appender name="FileLog" type="log4net.Appender.BufferingForwardingAppender">
<bufferSize value="20" />
<lossy value="false" />
<appender-ref ref="RollingFileAppender" />
</appender>
<appender name="FilteredFileLog" type="log4net.Appender.ForwardingAppender">
<threshold value="WARN" />
<appender-ref ref="FileLog" />
</appender>
<logger name="RefreshDataService" >
<level value="DEBUG" />
<appender-ref ref="FilteredFileLog" />
<appender-ref ref="DetailedTransportLog" />
</logger>
You can use a level range filter on the appender:
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="WARN" />
<levelMax value="FATAL" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
My understanding is that the Threshold property is used tell the appender to flush the buffer when messages of a certain level are logged. This way you can make for instance sure that errors are written immediately to the database.