title: Kafka High Level Vs Low level consumer
body: <p>I have the following questions regarding topics and partitions</p>
  
  <p>1) What is the difference between n-topics with m-partitions and n<em>m topics ? 
  Would there be a difference when accessing m-partitions through m threads and n</em>m topics using n*m different processes</p>
  
  <p>2)A perfect use case differentiating high level and low level consumer</p>
  
  <p>3)In case of a failure (i.e) message not delivered where can i find the error logs in Kafka.</p>