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Questions tagged [log4net-appender]

In log4net, an appender is an output destination for a log such as a file, the console, a database or even e-mail.

An appender looks something like this:

<appender name="console" type="log4net.Appender.ConsoleAppender">
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date %level %logger - %message%newline" />
  </layout>
</appender>

This will output any log message you write via the log4net-Logger to the console attached to your application.

293 questions
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Change name of logfile a few times during runtime

Is it possible to change the name of a logfile for a fileappender while the application is running? It will be done a few times / day. I'll try to elaborate myself a bit more: my app writes firmware on a device. All the devices the user already…
Koen
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log4net with MinimalLock locking model not working when setting file name programmatically

When dynamically setting the log file name, the RollingFileAppender used with the log4net.Appender.FileAppender+MinimalLock locking model does not seem to log anything to the file. However, when using the appender without this locking model,…
pmohandas
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Log4net preserveLogFileNameExtension not working

this is my log4net configuration, the rollover log file is created wrong extension. The first file created with name of log_debug.txt and the rollover file created with log_debug.txt.1. but ideally it should be log_debug.1.txt. I used…
user845392
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log4net - getting appenders specific to only one logger

I'm looking for a way to get all appenders attached to one logger instance. I tried: Hierarchy hierarchy = LogManager.GetRepository() as Hierarchy; hierarchy.GetAppenders() as per documentation this returns all appenders for all loggers currently…
andreav
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Trying to get log4net working with PowerShell (with a log4net config file in the mix)

I have been struggling with getting log4net working with PowerShell. I have the following PowerShell code that pulls in log4net with a configuration file and then attempts to make a simple log file entry but which errors…
freeBSD
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Logging large messages with Log4Net AdoNetAppender

I have a library which has a couple of web service calls. Now it is a requirement to log all requests made to external web services and to log all responses received. This is for internal audits later. My sql table looks like this. CREATE TABLE…
icecubed
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Log4net custom filter not filtering

Currently have a log4net filter like below. This filter shouldnt allow same message to be logged over a certain interval. However, messages are certain getting logged. Source: Log4net, eliminate duplicate messages public class UniqueLogFilter :…
Gauravsa
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log4net asp.net core 2.0 create log files by date

I am using log4net in .net core 2.0 app as below: Startup File: using Microsoft.Extensions.Logging; public class Startup { public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory) { …
kaka1234
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C#-Where to use log4net setting with azure function app?

I'am working with azure functions,in order to log exception details to application insight from Azure functions, I was logging messages by using TelemetryClient() object along with instrumentation key like below Example: var telemetryClient = new…
Kumari Dimple
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.Net Core 2.0 Log4Net AdoNetAppender isn't working

We have made common logging library based on Log4Net in .Net Core 2.0 Console and FileAppender works fine but we want to log to SQ DB and trying to use AdoNetAppender, we get following error System.TypeLoadException: Could not load type …
Imran
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How to log the level as a single letter in log4net?

Is there a way to change this configuration:
Holly
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log4net AppenderSkeleton ignores PatternLayout

I created my own Appender with log4net, public class TextBoxAppender : AppenderSkeleton { ...(constructor and other stuff omitted)... protected override void Append(log4net.Core.LoggingEvent loggingEvent) { var…
Pep
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Log4Net TelnetAppender does not run when app runs as windows service

I have an application that uses the rolling log appender and the telnet appender. The application can run as either a service or a desktop application. When I run as a desktop app the rolling appender and telnet appender both work and I can telnet…
dgxhubbard
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Is there a way to have log4net create log file only when there is logging activity?

We changed our log4net file name to include the current date but only want log files created on those dates that there is logged activity. This is our current configuration:
Brad Patton
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Log4Net: When is the file handle acquired and released?

I am a Log4Net newbie and trying to get a basic/safe understanding of how it works. If I configure my Logger to a FileAppender, and I have multiple statements like below, one after the…
Brian
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