log4net

Ship logs from your .NET application to Logstash

Follow the steps below to send your observability data to Logit.io

Logs

Send your log4net application/access/error logs to Logit.io via Logstash.

Install Integration

Please click on the Install Integration button to configure your stack for this source.

Install

Installing log4net and Logit.io appender.

Install-Package log4net
Install-Package log4net.Logit

Configuring log4net

Configuring log4net can be done in your application app.config or web.config or specific log4net configuration file.

<appender name="LogitAppender" type="log4net.Logit.LogitAppender, log4net.Logit">
  <apikey value="@apikey" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionpattern value="%property{log4net:HostName} %-5p %d %5rms %-22.22c{1} %-18.18M - %m%n" />
  </layout>
</appender>
 
<root>
  <level value="ALL" />
  <appender-ref ref="LogitAppender" />
</root>

log4net is a fully featured logging framework and has many other capabilities that are not detailed here, please see the log4net Documentation (opens in a new tab) for more information.

Check Logit.io for your logs

Data should now have been sent to your Stack.

View My Data

If you don't see take a look at How to diagnose no data in Stack below for how to diagnose common issues.

How to diagnose no data in Stack

If you don't see data appearing in your stack after following this integration, take a look at the troubleshooting guide for steps to diagnose and resolve the problem or contact our support team and we'll be happy to assist.

Log4Net Logger Overview

Log4net is a logging platform & framework for .NET that uses hierarchical logging. This allows users to selectively control which log messages are sent to a particular output target so as to not overwhelm the system.

Log4net is often mentioned in association with Serilog & NLog as all three provide frameworks suitable for shipping data from .Net to an external log management service.

This framework is built to prioritise speed and flexibility for the user and also features fail-stop & thread-safe functionality.

As of April of this year, the project is regarded as dormant due to the lack of active users performing code reviews, committing new code or launching new releases of Log4net.

While Log4net itself is a logging framework, it also creates internal logs of its own that users find tedious to reliably troubleshoot without the use of a tool like Hosted Logstash (opens in a new tab).

The Logit.io platform is home to both a Log4net & .NET log file analyzer built on Hosted Logstash, Elasticsearch & Kibana to make centralising your data & setting up alerts to monitor your applications easy.

If you need any assistance with analysing your internal Log4net or .NET logs we're here to help. Feel free to reach out by contacting us via live chat and we'll be happy to help you get started with analysing your data.

Local Logstash Logstash Logging