title: Hbase slave's HReginServer can not start
body: <p>When I start my HBase , the HReginServer and HMaster of my master machine start successful , but the slaves HReginServer can not start </p>
  
  <p>my hadoop version is 2.8.0 , hbase version is 1.2.6 , zookeeper version is 3.4.9</p>
  
  <p>and my hbase-site.xml is :</p>
  
  <pre><code>&lt;property&gt;
       &lt;name&gt;hbase.rootdir&lt;/name&gt;
       &lt;value&gt;hdfs://hadoop:9000/hbase&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
       &lt;name&gt;hbase.cluster.distributed&lt;/name&gt;
       &lt;value&gt;true&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
       &lt;name&gt;hbase.master&lt;/name&gt;
       &lt;value&gt;60000&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
       &lt;name&gt;hbase.zookeeper.property.dataDir&lt;/name&gt;
       &lt;value&gt;/usr/local/hbase/zoodata&lt;/value&gt;
  &lt;/property&gt;
  
  &lt;property&gt;
       &lt;name&gt;hbase.zookeeper.quorum&lt;/name&gt;
       &lt;value&gt;hadoop,slave03,slave02&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
       &lt;name&gt;hbase.zookeeper.property.clientPort&lt;/name&gt;
       &lt;value&gt;2181&lt;/value&gt;
  &lt;/property&gt;
  &lt;property&gt;
       &lt;name&gt;hbase.regionserver.port&lt;/name&gt;
       &lt;value&gt;60020&lt;/value&gt;
  &lt;/property&gt;    
  </code></pre>
  
  <p>and regionservers is :</p>
  
  <pre><code>hadoop
  slave03
  slave02
  </code></pre>
  
  <p>here is the error message </p>
  
  <pre><code>2017-06-16 15:09:34,730 ERROR [main] 
  regionserver.HRegionServerCommandLine: Region server exiting
  java.lang.RuntimeException: Failed construction of Regionserver: class org.apache.hadoop.hbase.regionserver.HRegionServer
      at org.apache.hadoop.hbase.regionserver.HRegionServer.constructRegionServer(HRegionServer.java:2682)
      at org.apache.hadoop.hbase.regionserver.HRegionServerCommandLine.start(HRegionServerCommandLine.java:64)
      at org.apache.hadoop.hbase.regionserver.HRegionServerCommandLine.run(HRegionServerCommandLine.java:87)
      at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
      at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:126)
      at org.apache.hadoop.hbase.regionserver.HRegionServer.main(HRegionServer.java:2697)
  Caused by: java.lang.reflect.InvocationTargetException
      at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
      at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
      at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
      at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
      at org.apache.hadoop.hbase.regionserver.HRegionServer.constructRegionServer(HRegionServer.java:2680)
      ... 5 more
  Caused by: java.io.IOException: Problem binding to slave02/119.29.83.97:60020 : Cannot assign requested address. To switch ports use the 'hbase.regionserver.port' configuration property.
      at org.apache.hadoop.hbase.regionserver.RSRpcServices.&lt;init&gt;(RSRpcServices.java:938)
      at org.apache.hadoop.hbase.regionserver.HRegionServer.createRpcServices(HRegionServer.java:647)
      at org.apache.hadoop.hbase.regionserver.HRegionServer.&lt;init&gt;(HRegionServer.java:531)
      ... 10 more
  Caused by: java.net.BindException: Cannot assign requested address
      at sun.nio.ch.Net.bind0(Native Method)
      at sun.nio.ch.Net.bind(Net.java:433)
      at sun.nio.ch.Net.bind(Net.java:425)
      at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
      at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
      at org.apache.hadoop.hbase.ipc.RpcServer.bind(RpcServer.java:2592)
      at org.apache.hadoop.hbase.ipc.RpcServer$Listener.&lt;init&gt;(RpcServer.java:585)
      at org.apache.hadoop.hbase.ipc.RpcServer.&lt;init&gt;(RpcServer.java:2045)
      at org.apache.hadoop.hbase.regionserver.RSRpcServices.&lt;init&gt;(RSRpcServices.java:930)
      ... 12 more
  
  I hope some help , thank you so much !
  </code></pre>