title: Kafka consumer stuck in (Re-)joining group
body: <p>Whats the default behavior of kafka (version 0.10) consumer if it tries to rejoin the consumer group.
  I am using a single consumer for a consumer group but it seems like it got struck at rejoining. 
  After each 10 min it print following line in consumer logs. </p>
  
  <blockquote>
    <p>2016-08-11 13:54:53,803 INFO o.a.k.c.c.i.ConsumerCoordinator [pool-5-thread-1] ****Revoking previously assigned partitions**** [] for group image-consumer-group</p>
    
    <p><strong>2016-08-11 13:54:53,803</strong> INFO o.a.k.c.c.i.AbstractCoordinator [pool-5-thread-1] <strong>(Re-)joining group image-consumer-group</strong> </p>
    
    <p>2016-08-11 14:04:53,992 INFO o.a.k.c.c.i.AbstractCoordinator [pool-5-thread-1] Marking the coordinator dead for group image-consumer-group </p>
    
    <p>2016-08-11 14:04:54,095 INFO o.a.k.c.c.i.AbstractCoordinator [pool-5-thread-1] Discovered coordinator  for group image-consumer-group.</p>
    
    <p><strong>2016-08-11 14:04:54,096</strong> INFO o.a.k.c.c.i.AbstractCoordinator [pool-5-thread-1] <strong>(Re-)joining group image-consumer-group</strong></p>
  </blockquote>
  
  <p>Restart consumer application is not helping.</p>