2015-08-16 11:36:33,188 ERROR [main] master.HMasterCommandLine: Master exiting java.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMas ter. at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:2307) at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:234 ) at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:140) 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.master.HMaster.main(HMaster.java:2317) Caused by: java.io.IOException: Problem binding to Matts-MBP/192.168.1.26:16000 : Address already in use. To switch ports use the 'hbase.master.port' configuration property. at org.apache.hadoop.hbase.regionserver.RSRpcServices.(RSRpcServices.java:957) at org.apache.hadoop.hbase.master.MasterRpcServices.(MasterRpcServices.java:225) at org.apache.hadoop.hbase.master.HMaster.createRpcServices(HMaster.java:522) at org.apache.hadoop.hbase.regionserver.HRegionServer.(HRegionServer.java:538) at org.apache.hadoop.hbase.master.HMaster.(HMaster.java:364) 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.master.HMaster.constructMaster(HMaster.java:2300) ... 5 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:444) at sun.nio.ch.Net.bind(Net.java:436) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) at org.apache.hadoop.hbase.ipc.RpcServer.bind(RpcServer.java:2517) at org.apache.hadoop.hbase.ipc.RpcServer$Listener.(RpcServer.java:598) at org.apache.hadoop.hbase.ipc.RpcServer.(RpcServer.java:2001) at org.apache.hadoop.hbase.regionserver.RSRpcServices.(RSRpcServices.java:950) ... 14 more