title: Zookeeper property still a requirement in the Kafka consumer?
body: <p>I was referring to a post here:
  <a href="https://stackoverflow.com/questions/38583608/connecting-to-zookeeper-in-a-apache-kafka-multi-node-cluster">Connecting to Zookeeper in a Apache Kafka Multi Node cluster</a></p>
  
  <p>Its mentioned here that from kafka V9 version, Producer and Consumer does not have to use the zookeeper.connect property and just the bootstrap.servers is enough to producer/consume data.</p>
  
  <p>My POM.xml looks like this in the consumer side:</p>
  
  <pre><code>&lt;properties&gt;
      &lt;java.version&gt;1.7&lt;/java.version&gt;
      &lt;kafka.version&gt;0.9.0.1-cp1&lt;/kafka.version&gt;
      &lt;kafka.scala.version&gt;2.11&lt;/kafka.scala.version&gt;
      &lt;confluent.version&gt;2.0.1&lt;/confluent.version&gt;
      &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.sourceEncoding&gt;
  &lt;/properties&gt;
  
  
  &lt;dependency&gt;
  &lt;groupId&gt;org.apache.kafka&lt;/groupId&gt;
  &lt;artifactId&gt;kafka_2.10&lt;/artifactId&gt;
  &lt;version&gt;0.10.0.0&lt;/version&gt;
  &lt;/dependency&gt;
  </code></pre>
  
  <p>I run into the following issue in the consumer side, without zookeeper.connect property. Does anyone has the consumer part working without the zookeeper connect property ?</p>
  
  <pre><code>[WARNING] 
  java.lang.reflect.InvocationTargetException
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:297)
  at java.lang.Thread.run(Thread.java:745)
  Caused by: java.lang.IllegalArgumentException: requirement failed: Missing required property 'zookeeper.connect'
  at scala.Predef$.require(Predef.scala:233)
  at kafka.utils.VerifiableProperties.getString(VerifiableProperties.scala:177)
  at kafka.utils.ZKConfig.&lt;init&gt;(ZkUtils.scala:902)
  at kafka.consumer.ConsumerConfig.&lt;init&gt;(ConsumerConfig.scala:101)
  at kafka.consumer.ConsumerConfig.&lt;init&gt;(ConsumerConfig.scala:105)
  at io.confluent.examples.consumer.ConsumerGroup.&lt;init&gt;(ConsumerGroup.java:30)
  at io.confluent.examples.consumer.ConsumerGroup.main(ConsumerGroup.java:113)
  ... 6 more
  </code></pre>