title: Kafka does not retrieve messages which are sent when it is offline
body: <p>I have setup a kafka cluster on a machine and testing with kafka-console-producer.bat and kafka-console-producer.bat</p>
  
  <p>I started zookeeper, kafka-server, and produce some test messages using kakfa-console-producer, followed by kakfa-console-consumer, no messages were printed.</p>
  
  <p>However, if I start zookeeper, kakfa-server, kakfa-console-consumer and lastly, kakfa-console-producer and produce the test messages, the messages were printed out on the kakfa-console-consumer.</p>
  
  <p>Why is it Kafka is unable to pickup messages when it is offline? I am only using 1 broker.</p>