2019-07-04 14:29:34,210 FATAL [centos103:16000.activeMasterManager] master.HMaster: Unhandled exception. Starting shutdown.
java.net.ConnectException: Call From centos103/192.168.130.131 to centos103:8020 failed on connection exception: java.net.ConnectException: 拒绝连接; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
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.net.NetUtils.wrapWithMessage(NetUtils.java:792)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732)
at org.apache.hadoop.ipc.Client.call(Client.java:1479)
at org.apache.hadoop.ipc.Client.call(Client.java:1412)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
at com.sun.proxy.$Proxy16.setSafeMode(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.setSafeMode(ClientNamenodeProtocolTranslatorPB.java:666)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy17.setSafeMode(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:302)
at com.sun.proxy.$Proxy18.setSafeMode(Unknown Source)
at org.apache.hadoop.hdfs.DFSClient.setSafeMode(DFSClient.java:2596)
at org.apache.hadoop.hdfs.DistributedFileSystem.setSafeMode(DistributedFileSystem.java:1223)
at org.apache.hadoop.hdfs.DistributedFileSystem.setSafeMode(DistributedFileSystem.java:1207)
at org.apache.hadoop.hbase.util.FSUtils.isInSafeMode(FSUtils.java:525)
at org.apache.hadoop.hbase.util.FSUtils.waitOnSafeMode(FSUtils.java:971)
at org.apache.hadoop.hbase.master.MasterFileSystem.checkRootDir(MasterFileSystem.java:428)
at org.apache.hadoop.hbase.master.MasterFileSystem.createInitialFileSystemLayout(MasterFileSystem.java:152)
at org.apache.hadoop.hbase.master.MasterFileSystem.(MasterFileSystem.java:127)
at org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:714)
at org.apache.hadoop.hbase.master.HMaster.access$600(HMaster.java:198)
at org.apache.hadoop.hbase.master.HMaster$2.run(HMaster.java:1868)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.ConnectException: 拒绝连接
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:614)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:712)
at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:375)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1528)
at org.apache.hadoop.ipc.Client.call(Client.java:1451)
... 29 more
首先查看Hadoop的配置文件core-site.xml，端口为9000
fs.defaultFS hdfs://Hadoop01:9000
再查看hbase-site.xml,端口为8020
hbase.rootdir hdfs://hadoop01:8020/hbase xxxx
只需把8020改成9000就ok，然后把hbase-site.xml分发到其他节点，HMaster启动成功
