title: KafkLog4JAppender not pushing application logs to kafka topic
body: <p>I am pretty new to using the Kafka stream.
  In a particular requirement I have to push my log4j logs directly to Kafka topic.</p>
  
  <p>I have a standalone kafka installation running on centos and i have verified it with the kafka publisher and consumer clients. Also i am using the bundled zookeeper instance.</p>
  
  <p>Now i have also created a standalone java app with log4j logging enabled. Also i have edited the log4j.properties file as below -</p>
  
  <pre><code>log4j.rootCategory=INFO
  log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
  log4j.appender.file.DatePattern='.'yyyy-MM-dd-HH
  log4j.appender.file.File=/home/edureka/Desktop/Anurag/logMe
  log4j.appender.file.layout=org.apache.log4j.PatternLayout
  log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd'T'HH:mm:ss.SSS'Z'}{UTC} %p %C %m%n
  
  log4j.logger.com=INFO,file,KAFKA
  
  #Kafka Appender
  log4j.appender.KAFKA=kafka.producer.KafkaLog4jAppender
  log4j.appender.KAFKA.layout=org.apache.log4j.PatternLayout
  log4j.appender.KAFKA.layout.ConversionPattern=%d{yyyy-MM-dd'T'HH:mm:ss.SSS'Z'}{UTC} %p  %C %m%n
  
  log4j.appender.KAFKA.ProducerType=async
  log4j.appender.KAFKA.BrokerList=localhost:2181
  log4j.appender.KAFKA.Topic=test
  log4j.appender.KAFKA.Serializer=kafka.test.AppenderStringSerializer 
  </code></pre>
  
  <p>Now when i am running the application, all the logs are going into the local log file but the consumer is still not showing any entry happening.
  The topic i am using is test in either scenario.</p>
  
  <p>Also no error log is being generated the the detailed logs of the log4j library are as below -</p>
  
  <pre><code>log4j: Trying to find [log4j.xml] using context classloader sun.misc.Launcher$AppClassLoader@a1d92a.
  log4j: Trying to find [log4j.xml] using sun.misc.Launcher$AppClassLoader@a1d92a class loader.
  log4j: Trying to find [log4j.xml] using ClassLoader.getSystemResource().
  log4j: Trying to find [log4j.properties] using context classloader sun.misc.Launcher$AppClassLoader@a1d92a.
  log4j: Using URL [file:/home/edureka/workspace/TestKafkaLog4J/bin/log4j.properties] for automatic log4j configuration.
  log4j: Reading configuration from URL file:/home/edureka/workspace/TestKafkaLog4J/bin/log4j.properties
  log4j: Parsing for [root] with value=[DEBUG, stdout, file].
  log4j: Level token is [DEBUG].
  log4j: Category root set to DEBUG
  log4j: Parsing appender named "stdout".
  log4j: Parsing layout options for "stdout".
  log4j: Setting property [conversionPattern] to [%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n].
  log4j: End of parsing for "stdout".
  log4j: Setting property [target] to [System.out].
  log4j: Parsed "stdout" options.
  log4j: Parsing appender named "file".
  log4j: Parsing layout options for "file".
  log4j: Setting property [conversionPattern] to [%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n].
  log4j: End of parsing for "file".
  log4j: Setting property [file] to [/home/edureka/Desktop/Anurag/logMe].
  log4j: Setting property [maxBackupIndex] to [10].
  log4j: Setting property [maxFileSize] to [5MB].
  log4j: setFile called: /home/edureka/Desktop/Anurag/logMe, true
  log4j: setFile ended
  log4j: Parsed "file" options.
  log4j: Finished configuring.
  2015-05-11 19:44:40 DEBUG TestMe:19 - This is debug : anurag
  2015-05-11 19:44:40 INFO  TestMe:23 - This is info : anurag
  2015-05-11 19:44:40 WARN  TestMe:26 - This is warn : anurag
  2015-05-11 19:44:40 ERROR TestMe:27 - This is error : anurag
  2015-05-11 19:44:40 FATAL TestMe:28 - This is fatal : anurag
  2015-05-11 19:44:40 INFO  TestMe:29 - message from log4j appender
  </code></pre>
  
  <p>Any help will be really great.
  Thanks,
  AJ</p>