2016-03-29 03:44:20,149 ERROR [main] master.HMasterCommandLine: Master exiting
java.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMaster.
at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:2401)
at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:232)
at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:138)
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:2411)
Caused by: java.lang.IllegalArgumentException: java.net.UnknownHostException: mycluster
at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:373)
at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:258)
at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:153)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:602)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:547)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:139)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2591)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:89)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2625)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2607)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:368)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)
at org.apache.hadoop.hbase.util.FSUtils.getRootDir(FSUtils.java:1003)
at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:568)
at org.apache.hadoop.hbase.master.HMaster.<init>(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:2394)
... 5 more
Caused by: java.net.UnknownHostException: mycluster
... 25 more