hbase启动之后，hmaster几秒钟后挂掉，rs和zk在各个节点的进程均正常
查看hmaster日志显示拒绝连接
2017-08-07 09:59:15,131 FATAL [master:16000.activeMasterManager] master.HMaster: Unhandled exception. Starting shutdown. java.net.ConnectException: Call From master/192.168.56.100 to localhost:9000 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:783) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:730) 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:529) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:493) at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:606) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:700) at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:367) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1463) at org.apache.hadoop.ipc.Client.call(Client.java:1382) ... 29 more
将hbase-site.xml中的配置项中的端口号8020改为hdfs在运行的端口号9000
<property> <name>hbase.rootdir</name> <value>hdfs://localhost:8020/hbase</value></property>
在core-site.xml中查到hdfs在运行的端口号为9000
<property> <name>fs.defaultFS</name> <value>hdfs://master:9000</value> </property>
