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How I can set log4net to log my files into different folders each day?
(5 answers)
Closed 7 years ago.
Is it possible to create a log path everyday which writes the logs in the following folder format.
D:\Logs\yyyyMMdd\App1\App.txt
Will Log4Net create the path if it does not exist. ?
I tried the following, but it does't seem to work.
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="D:\Logs\" />
<appendToFile value="true" />
<datePattern value="yyyyMMdd'\App1\App.txt'" />
<rollingStyle value="Date" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date{ABSOLUTE} [%logger] %level - %message%newline%exception" />
</layout>
</appender>
Thanks in advance.
You can introduce your own appender:
namespace CustomLogging
{
public class CustomAppender : log4net.Appender.RollingFileAppender
{
protected override void OpenFile(string fileName, bool append)
{
string baseDirectory = Path.GetDirectoryName(fileName);
string fileNameOnly = Path.GetFileName(fileName);
string newDirectory = Path.Combine(baseDirectory, DateTime.Now.ToString("yyyyMMdd"));
string newFileName = Path.Combine(newDirectory, fileNameOnly);
base.OpenFile(newFileName, append);
}
}
}
and then
<appender name="CustomAppender" type="CustomLogging.CustomAppender">
<file type="log4net.Util.PatternString" value="Logs\Client"/>
<appendToFile value="true"/>
<rollingStyle value="Composite"/>
<datePattern value="-HHmmss"/>
<maxSizeRollBackups value="40"/>
<maximumFileSize value="1MB"/>
<countDirection value="1"/>
<encoding value="utf-8"/>
<staticLogFileName value="false"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date{HH:mm:ss.fff}|%-5level|%message%newline"/>
</layout>
</appender>
Try this solution but only XAML
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
<file value="logs\" />
<datePattern value="dd.MM.yyyy'.log'" />
<staticLogFileName value="false" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="5MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
</layout>
</appender>
Related
I have an solution which consist of multiple projects.its a desktop application I need to have two separate log4net configurations for those projects since one project contains a library that uses log4net itself. On one project log4net configured in App.config and other project it is configured in log4net.configuration file.
below is one configuration file
'''
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,Log4net"/>
</configSections>
<log4net>
<root>
<level value="DEBUG"/>
<appender-ref ref="SmtpAppender"/>
<appender-ref ref="LogFileAppender"/>
<appender-ref ref="ColoredConsoleAppender"/>
</root>
<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="D:\seperatelog.txt"/>
<param name="AppendToFile" value="true"/>
<rollingStyle value="Date" />
<datePattern value="'On_'yyyy-MM-dd'.log'" />
<appendToFile value="true" />
<maxSizeRollBackups value="14" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %level %logger - %message%newline" />
</layout>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger: %message%newline"/>
</layout>
</appender>
<appender name="ColoredConsoleAppender" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger: %message%newline"/>
</layout>
</appender>
<appender name="SmtpAppender" type="log4net.Appender.SmtpAppender">
<to value="bobby.chopra#prcm.com"/>
<from value="TagFileUploader#prcm.com"/>
<subject value="TagFileUploader ERROR"/>
<smtpHost value="prc-mn-ex01"/>
<bufferSize value="512"/>
<lossy value="true"/>
<evaluator type="log4net.Core.LevelEvaluator">
<threshold value="ERROR"/>
</evaluator>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger: %message%newline"/>
</layout>
</appender>
<appender name="cargillsJournal" type="log4net.Appender.FileAppender">
<param name="File" value="D:\BankInABoxffffff-log.txt"/>
<param name="AppendToFile" value="true"/>
<rollingStyle value="Date" />
<datePattern value="'On_'yyyy-MM-dd'.log'" />
<appendToFile value="true" />
<maxSizeRollBackups value="14" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %level %logger - %message%newline" />
</layout>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger: %message%newline"/>
</layout>
</appender>
</log4net>
Other configuration file is below
<log4net>
<root>
<level value="ALL" />
<appender-ref ref="console" />
</root>
<appender name="console" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date - %message%newline" />
</layout>
</appender>
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="rolling-log.txt" />
<appendToFile value="true" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="100" />
<rollingStyle value="Size" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<header value="[Header]
" />
<footer value="[Footer]
" />
<conversionPattern value="%date [%thread] %-5level %logger [%ndc] - %message%newline" />
</layout>
</appender>
<logger name="LoggingExample">
<!-- <appender-ref ref="B" /> -->
<level value="ALL" />
<appender-ref ref="RollingLogFileAppender" />
</logger>
</log4net>
those two log file load correctly but they all write on to the same log file seperatelog.txt
What i need is to have two separate files to create for those 2 configurations.
Seems you'll better define log4net configuration not in app.config but in dedicated XML files. Names of XML files can be composed according to some convention so your projects will know what log4net configuration XML is dedicated to each one.
You'll able to configure your log4net with XmlConfigurator.Configure(...) function
I am trying to create file with naming convention as Service_HH_mm_ss.txt.
file naming format is
<file type="log4net.Util.PatternString" value="C:\\Log\\%date{yyyy-MM-dd}\\Service_%date{HH_mm_ss}.log" />
Also i have given file max size to
<rollingStyle value="Size" />
<maximumFileSize value="10KB" />
i want to create new file if and only if size exceed to 10KB, but new file is getting creating on each and every second.
not able to find the solution.
Config file code is:
<appender name="FileAppender" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="C:\\Log\\%date{yyyy-MM-dd}\\Service_%date{HH_mm_ss}.log" />
<encoding value="utf-8" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="20" />
<maximumFileSize value="10KB" />
<staticLogFileName value="false" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %level - %message%n" />
</layout>
Is it possible to do what i want, i ma not getting any solution.
In your Appender definition the value for the File name changes every second. Therefor log4net creates a new file every second. If you need the exact time to be part of the file name, you can use rolling Style 'Composite' and add a DatePattern like so:
<appender name="FileAppender" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="C:\\Log\\%date{yyyy-MM-dd}\\Service_" />
<encoding value="utf-8" />
<appendToFile value="true" />
<rollingStyle value="Composite" />
<datePattern value = "HH_mm_ss'.log'"
<maxSizeRollBackups value="20" />
<maximumFileSize value="10KB" />
<staticLogFileName value="false" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %level - %message%n" />
</layout>
I want to create log files names with the following pattern:
SBRF_20120820.log
SBRF_20120821.log
SBRF_20120822.log
SBRF_20120823.log
In other words, create a new file for each day. So, I create the following configuration to do that:
<log4net>
<appender name="FileAppender" type="log4net.Appender.RollingFileAppender, log4net">
<file type="log4net.Util.PatternString" value="Logs/SBRF_%date{yyyyMMdd}.log" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %-5level - %message%newline" />
</layout>
</appender>
<logger name="LogEmArquivo">
<level value="INFO" />
<appender-ref ref="FileAppender" />
</logger>
</log4net>
When I run the program, today for example, the file SBRF_20120823.log will be created. But in the following days the log keeps to write in the SBRF_20120823.log file, and the files that are created are:
SBRF_20120823.log.2012-08-23
SBRF_20120823.log.2012-08-24
SBRF_20120823.log.2012-08-25
SBRF_20120823.log.2012-08-26
And if I run the program tomorrow, the files that will be created are:
SBRF_20120824.log.2012-08-24
SBRF_20120824.log.2012-08-25
SBRF_20120824.log.2012-08-26
SBRF_20120824.log.2012-08-27
Why?
You do not put the date pattern in the <file> - that is the static part of the filename. You need to put it into the <datePattern>.
Also, if you are using log4net 1.2.11, you can use <preserveLogFileNameExtension> which puts the datePattern on the current file also.
I think this is what you want your configuration to look like:
<log4net>
<appender name="FileAppender" type="log4net.Appender.RollingFileAppender, log4net">
<file type="log4net.Util.PatternString" value="Logs/SBRF_.log"/>
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="yyyyMMdd" />
<preserveLogFileNameExtension value="true"/>
<staticLogFileName value="false" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %-5level - %message%newline" />
</layout>
</appender>
<logger name="LogEmArquivo">
<level value="INFO" />
<appender-ref ref="FileAppender" />
</logger>
Remove the <rollingStyle value="Date" />.
Don't think you change this behaviour with the RollingFileAppender, so you would have to create your own appender.
log4net in my project creates new log file every minute. I would like to have just one file per instance of my application, but every instance that runs should create new log file.
This is from my app.config file:
<appender name="file" type="log4net.Appender.RollingFileAppender">
<file value="C:\\Logs\\log2_"/>
<rollingStyle value="Date"/>
<datePattern value="MMdd_HHmmss.\tx\t"/>
<staticLogFileName value="false"/>
<appendToFile value="true"/>
<maximumFileSize value="500MB"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %-5level %message%newline"/>
</layout>
</appender>
What is the error here?
Your rolling style is set to Date meaning it will rotate on a time based interval. The datePattern element appears to be misused but it set to roll every minute (the ./tx/t) seem extraneous.
From the documentation the following is the example for once per app instance (with a 50G hard limit):
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="logfile.txt" />
<appendToFile value="false" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="-1" />
<maximumFileSize value="50GB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
</layout>
</appender>
See here for the documentation
exclude dateTime minutes from file layout
I'm very new to the log4net, and I am trying to create several files and log to them accordingly with my method calls and here is my code:
private static readonly ILog firstlog = LogManager.GetLogger("Data"); private static readonly ILog secondlog = LogManager.GetLogger("General");
and then I log like this:
firstlog.Info("some message"); secondlog.Info("some message");
and here is my configuration file:
<appender name="General" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="C:\logs\myfile1.log"/>
<param name="Threshold" value="DEBUG"/>
<appendToFile value="true"/>
<rollingStyle value="Size"/>
<maxSizeRollBackups value="10"/>
<maximumFileSize value="10MB"/>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %method %-5level %logger – %message%newline"/>
</layout>
</appender>
<appender name="Data" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="C:\logs\myfile2.log"/>
<param name="Threshold" value="DEBUG"/>
<appendToFile value="true"/>
<rollingStyle value="Size"/>
<maxSizeRollBackups value="10"/>
<maximumFileSize value="10MB"/>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %method %-5level %logger – %message%newline"/>
</layout>
</appender>
<logger name="general">
<appender-ref ref="General"/>
</logger>
<logger name="data">
<appender-ref ref="Data"/>
</logger>
<root>
<appender-ref ref="Data"/>
</root>
And they are all logged in one file and the other two files are empty. Why is this?
What am I doing wrong?
Try removing the line
<appender-ref ref="Data"/>
from the node...