[LOG4NET-198] Memory leak on a very basic code

• Type: Test
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 1.2.10
• Component/s: Core
• Environment: windows xp sp3
• Assignee: Unassigned
• Reporter: rauzy
• Created: 06/Feb/09 23:31
• Updated: 06/Jun/13 08:04
• Resolved: 06/Jun/13 08:04

Description

I build a simple form with a single button that start a timer execute every second, the task of this timer is to execute the following line:

log.Debug("Hello");

and I observe a memory leak.

See Below.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using log4net;
using log4net.Config;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
private static readonly ILog log = LogManager.GetLogger(typeof(Form1));
public Form1()

{ InitializeComponent(); }

private void button1_Click(object sender, EventArgs e)

{ XmlConfigurator.Configure(); FreqTimers.Start(); }

private void FreqTimers_Tick(object sender, EventArgs e)

{ log.Debug("demo"); }

}
}

with an app.config like

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<log4net debug="true">
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="C:\\Temp
TestMailer.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%-5p %d - %m %-18.18M %n" />
</layout>
</appender>
<root>
<level value="DEBUG" />
<appender-ref ref="RollingLogFileAppender" />
</root>
</log4net>
</configuration>

If you monitor the application, you see that the memory usage increase. Why? I can post the source solution if needed.