anchor.diff:  
   log4j.appender.controllerAppender=org.apache.log4j.DailyRollingFileAppender
   log4j.appender.controllerAppender.DatePattern='.'yyyy-MM-dd-HH
  -log4j.appender.controllerAppender.File=${kafka.logs.dir}/controller.log
  +log4j.appender.controllerAppender.File=<%= p('kafka.log.dirs') %>/controller.log
   log4j.appender.controllerAppender.layout=org.apache.log4j.PatternLayout
   log4j.appender.controllerAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
   
  
positive.code: 
  kafka.logs.dir=logs
  
  log4j.rootLogger=INFO, stdout 
  
  log4j.appender.stdout=org.apache.log4j.ConsoleAppender
  log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
  
negative.code: 
  log4j.appender.kafkaAppender=org.apache.log4j.DailyRollingFileAppender
  log4j.appender.kafkaAppender.DatePattern='.'yyyy-MM-dd-HH
  log4j.appender.kafkaAppender.File=<%= p('kafka.log.dirs') %>/server.log
  log4j.appender.kafkaAppender.layout=org.apache.log4j.PatternLayout
  log4j.appender.kafkaAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
  
  log4j.appender.stateChangeAppender=org.apache.log4j.DailyRollingFileAppender
  log4j.appender.stateChangeAppender.DatePattern='.'yyyy-MM-dd-HH
  log4j.appender.stateChangeAppender.File=<%= p('kafka.log.dirs') %>/state-change.log
  log4j.appender.stateChangeAppender.layout=org.apache.log4j.PatternLayout
  log4j.appender.stateChangeAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
  
  log4j.appender.requestAppender=org.apache.log4j.DailyRollingFileAppender
  log4j.appender.requestAppender.DatePattern='.'yyyy-MM-dd-HH
  log4j.appender.requestAppender.File=<%= p('kafka.log.dirs') %>/kafka-request.log
  log4j.appender.requestAppender.layout=org.apache.log4j.PatternLayout
  log4j.appender.requestAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
  
  