Exception in thread "main" org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException): Failed to APPEND_FILE /user/super_rj/hive/textfile/GAOSU_passinfo/2019-09-25/gcxx for DFSClient_NONMAPREDUCE_-176214571_1 on 37.158.97.131 because this file lease is currently owned by DFSClient_NONMAPREDUCE_294935869_1 on 37.158.99.106
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLeaseInternal(FSNamesystem.java:2939)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInternal(FSNamesystem.java:2680)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInt(FSNamesystem.java:2994)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFile(FSNamesystem.java:2962)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.append(NameNodeRpcServer.java:779)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.append(ClientNamenodeProtocolServerSideTranslatorPB.java:458)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:973)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2260)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2256)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1781)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2254)
at org.apache.hadoop.ipc.Client.call(Client.java:1524)
at org.apache.hadoop.ipc.Client.call(Client.java:1460)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
at com.sun.proxy.$Proxy10.append(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.append(ClientNamenodeProt
原因：
1）上一个client租约未到期
2）同时有有多个用户建立租约（一个程序正在跑，另一个程序开启，两个程序同时报错）
原文：https://www.cnblogs.com/ww5566/p/11583499.html