2016-05-04 18:14:51,990 INFO org.apache.hadoop.ipc.Server: IPC Server Responder: starting 2016-05-04 18:14:51,990 INFO org.apache.hadoop.ipc.Server: IPC Server listener on 50020: starting 2016-05-04 18:14:52,219 INFO org.apache.hadoop.hdfs.server.com
hadoop namenode -format多次格式化后,datanode启动不了 org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /user/beifeng/core-site.xml._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1). There are 0 datanode(s) running and