Support Article
Log entries are writing to custom log and Pega log
SA-23029
Summary
User added an appender for custom logs. The log entries are writing to both Pega log and custom log.
User's business requirement is to write business log entries to business log only separate from standard pega log. User requires to know how to bifurcate custom and pega logs to separate log files?
Error Messages
Not Applicable.
Steps to Reproduce
1. Add below lines to prlogging.xml
<appender name="CustomAppender" class="com.pega.pegarules.priv.util.DailySizeRollingFileAppenderPega">
<param name="FileNamePattern" value="'/logs/path/XXXX-Int-Custom--'yyyy-MMM-dd'.log'"/>
<param name="MaxFileSize" value="50MB" />
<layout class="com.pega.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%m%n" />
</layout>
</appender>
<category name="Rule_Obj_Activity.WriteRequestResponse.XXXX_FW_YYYY_Work.Action">
<priority value="info"/>
<appender-ref ref="CustomAppender"/>
</category>
Root Cause
How to question.
Resolution
Perform the following local-change:
Modify prlogging.xml to add the log appenders as below :
<appender name="ASYNC" class="com.pega.apache.log4j.AsyncAppender">
<param name="BufferSize" value="512"/>
<param name="Blocking" value="false"/>
<filter class="com.pega.apache.log4j.varia.LevelMatchFilter">
<param name="LevelToMatch" value="ALERT"/>
<param name="AcceptOnMatch" value="false"/>
</filter>
<!-- Introducing the appenders below to filter out and bifurcate PEGA and BUSINESS log messages -->
<appender-ref ref="PEGA-LOGGER"/>
</appender>
<appender name="PEGA-LOGGER" class="com.pega.apache.log4j.AsyncAppender">
<param name="BufferSize" value="512"/>
<param name="Blocking" value="false"/>
<filter class="com.pega.apache.log4j.varia.StringMatchFilter">
<param name="StringToMatch" value="INFO UNIQUE_ID" />
<param name="AcceptOnMatch" value="false" />
</filter>
<appender-ref ref="PEGA"/>
<appender-ref ref="CONSOLE"/>
</appender>
<category name="Rule_Obj_Activity.WriteRequestResponse.XXXX_FW_YYYY_Work.Action">
<priority value="info"/>
<appender-ref ref="BUSINESS-LOGGER"/>
</category>
<appender name="BUSINESS-LOGGER" class="com.pega.apache.log4j.AsyncAppender">
<param name="BufferSize" value="512"/>
<param name="Blocking" value="false"/>
<filter class="com.pega.apache.log4j.varia.StringMatchFilter">
<param name="StringToMatch" value="INFO UNIQUE_ID" />
<param name="AcceptOnMatch" value="true" />
</filter>
<filter class="com.pega.apache.log4j.varia.DenyAllFilter"/>
<appender-ref ref="CustomAppender"/>
</appender>
<appender name="CustomAppender" class="com.pega.pegarules.priv.util.DailySizeRollingFileAppenderPega">
<param name="FileNamePattern" value="'/logs/path/XXXX-Int-Custom-'yyyy-MMM-dd'.log'"/>
<param name="MaxFileSize" value="50MB" />
<layout class="com.pega.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%m%n" />
</layout>
</appender>
Published May 23, 2016 - Updated October 8, 2020
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