Re: Issues with bridge API while migrating to log4j 2

Please try using the latest code in the release-2.x branch - 2.17.2-SNAPSHOT. There have been over 50 fixes to the bridge applied.

Ralph

> On Feb 21, 2022, at 3:16 AM, Kudethur, Pavithra (Enterprise) <[email protected]> wrote:
> 
> Hi,
>    We are migrating to log4j2 from log4j1. We are using bridge API. I am finding issues with bridge API when I tried migrate.
> 
> Log4j.xml
> 
> <appender name="FILE" class="org.apache.log4j.rolling.RollingFileAppender">
>        <param name="Append" value="true"/>
>        <rollingPolicy class="org.apache.log4j.rolling.FixedWindowRollingPolicy">
>            <param name="FileNamePattern" value="${app.home.dir}/logs/app.log.%i"/>
>            <param name="ActiveFileName" value="${app.home.dir}/logs/app.log"/>
>            <param name="MaxIndex" value="13" />
>        </rollingPolicy>
>        <triggeringPolicy class="org.apache.log4j.rolling.SizeBasedTriggeringPolicy">
>            <param name="maxFileSize" value="3145728" />
>        </triggeringPolicy>
>        <layout class="org.apache.log4j.PatternLayout">
>            <param name="ConversionPattern" value="%d %-5p [%t] [%X{logCorId}] %c - %m%n"/>
>        </layout>
>    </appender>
> 
> For this, bridge API is not recognizing the class, “org.apache.log4j.rolling.RollingFileAppender”
> I changed the class to "org.apache.log4j.RollingFileAppender" to make it work.
> 
> New log4j.xml
> 
> <appender name=" FILE" class="org.apache.log4j.RollingFileAppender">
>        <param name="Append" value="true"/>
>                                         <param name="FileNamePattern" value="app.log.%i" />
>                                         <param name="ActiveFileName" value="logs/app.log" />
>            <param name="MaxBackupIndex" value="13" />
>                                         <param name="MaxFileSize" value="3072" />
>        <layout class="org.apache.log4j.PatternLayout">
>            <param name="ConversionPattern" value="%d %-5p [%t] [%X{logCorId}] %c - %m%n"/>
>        </layout>
>    </appender>
> 
> After the changes into log4j.xml as mentioned above logs started printing into log file. But the rolling over of file is causing issue. File name I needed is app.log, app.log.1, app.log.2 so on…
> 
> Issue1: But roll over file name is just having app<Date>.log while we want  filename as app.log, app.log.1, app.log.2…
> Issue2: org.apache.log4j.rolling.RollingFileAppender class is not supported by bridge API
> Issue3: When added <param name="File" value="logs/app.log.%i" /> instead of <param name="ActiveFileName" value="logs/app.log" />
> 
> The rolling file name is created with app.log.1, app.log.2…
> But the first file name is app.log.%i instead of app.log
> 
> How can we address these issues? I appreciate your time to look into these issues.
> 
> Regards,
> Pavithra
> 
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> 
>