[LOG4NET-272] Problems in dynamic file naming with multiple appenders

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.2.10
• Fix Version/s: 1.2/2.0 Maintenance Release
• Component/s: Appenders
• Environment: OS: Windows XP; Programming Environment: VB.NET; .NET Framework 3.5; Appender Type: RollingFileAppender
• Assignee: Dominik Psenner
• Reporter: Ranjith Nair
• Created: 30/Sep/10 18:37
• Updated: 05/Nov/16 20:56
• Resolved: 05/Nov/16 20:07

Description

I have 3 appenders in my config file for creating 3 different types of logs. I am using dynamic naming of file in each of the 3 appenders by setting the global context properties. In some cases, i need to set the log file name dynamically for just 1 appender. When i set the file name for just 1 appender, it creates another file named "null" with no data in addition to the actual logfile whose name has been set dynamically.

<appender name="RollingFileAppenderV1" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="Logs%property

{applog}

" />
.
.
.
<appender name="RollingFileAppenderV2" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="Logs%property

{dblog}

" />
.
.
<logger name="Logger1">
<level value="DEBUG" />
<appender-ref ref="RollingFileAppenderV1" />
</logger>
<logger name="Logger2">
<level value="DEBUG" />
<appender-ref ref="RollingFileAppenderV2" />
</logger>

In the VB.NET code i set the filename as :

log4net.GlobalContext.Properties("applog") = "file1.log"
Dim logobj as log4net.Ilog = LogManager.GetLogger("Logger1")
logobj.debug("test")

In this case it creates "file1.log" and also another empty file with name as "null". This happens only when i am setting either of the appenders filename at runtime.
Could you please check and let me know the issue behind this.