hbase中 hmaster 和regionserver的端口冲突问题

java.lang.RuntimeException: Failed construction of Regionserver: class org.apache.hadoop.hbase.regionserver.HRegionServer
at org.apache.hadoop.hbase.regionserver.HRegionServer.constructRegionServer(HRegionServer.java:2458)
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:2473)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.hbase.regionserver.HRegionServer.constructRegionServer(HRegionServer.java:2456)
… 5 more
Caused by: java.net.BindException: Problem binding to cdh/192.168.12.8:16020 : Address already in use
at org.apache.hadoop.hbase.ipc.RpcServer.bind(RpcServer.java:2368)
at org.apache.hadoop.hbase.ipc.RpcServer$Listener.(RpcServer.java:524)
at org.apache.hadoop.hbase.ipc.RpcServer.(RpcServer.java:1896)
at org.apache.hadoop.hbase.regionserver.RSRpcServices.(RSRpcServices.java:788)
at org.apache.hadoop.hbase.regionserver.HRegionServer.createRpcServices(HRegionServer.java:570)
at org.apache.hadoop.hbase.regionserver.HRegionServer.(HRegionServer.java:487)
… 10 more
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:463)
at sun.nio.ch.Net.bind(Net.java:455)
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:2366)
… 15 more

    执行 bin/start-hbase.sh 后，在hmaster 节点上执行 bin/local-regionservers.sh start  1(2,3,4...) 启动regionserver1,2,3,4表示偏移量 默认端口是 16020 加上偏移量之后启用16021端口，解决端口冲突