hadoop 为4节点集群，角色如下：
节点1 (namenode,datanode,nodemanager,zookeeper)
节点2 (namenode,resourcemanager,datanode,nodemanager,zookeeper)
节点3 (datanode,nodemanager,zookeeper)
节点4 (resourcemanager,datanode,nodemanager)
检测操作：
1.集群未运行在安全模式
2.datanode进程存在，web UI显示状态正常
3.网络测试正常
4.dfs.datanode.du.reserved设置没问题
5.磁盘使用率低于80%
6.datanode日志未发现错误
定时调度任务失败，错误如下：
Diagnostic Messages for this Task:
Error: java.lang.RuntimeException: Hive Runtime Error while closing operators
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:217)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:61)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:459)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1924)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /hive/warehouse/shac.db/bi_plan_prodline_startend_time_his/pt=20230206/plant=shenyang/.hive-staging_hive_2023-02-07_08-46-04_455_1820471416988920505-1/_task_tmp.-ext-10002/_tmp.000000_3 could only be replicated to 0 nodes instead of minReplication (=1). There are 4 datanode(s) running and no node(s) are excluded in this operation.
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:1722)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3449)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:692)
at org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:217)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:506)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2281)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2277)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1924)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2275)
at org.apache.hadoop.hive.ql.exec.FileSinkOperator$FSPaths.closeWriters(FileSinkOperator.java:191)
at org.apache.hadoop.hive.ql.exec.FileSinkOperator.closeOp(FileSinkOperator.java:980)
at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:598)
at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)
at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)
at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:610)
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:199)
... 8 more
Caused by: org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /hive/warehouse/shac.db/bi_plan_prodline_startend_time_his/pt=20230206/plant=shenyang/.hive-staging_hive_2023-02-07_08-46-04_455_1820471416988920505-1/_task_tmp.-ext-10002/_tmp.000000_3 could only be replicated to 0 nodes instead of minReplication (=1). There are 4 datanode(s) running and no node(s) are excluded in this operation.
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:1722)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3449)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:692)
at org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:217)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:506)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2281)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2277)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1924)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2275)
at org.apache.hadoop.ipc.Client.call(Client.java:1504)
at org.apache.hadoop.ipc.Client.call(Client.java:1441)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
at com.sun.proxy.$Proxy14.addBlock(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:423)
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:497)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:258)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104)
at com.sun.proxy.$Proxy15.addBlock(Unknown Source)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1860)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1656)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:790)
回答不易，求求您采纳点赞哦
adoop定时任务报错“could only be replicated to 0 nodes instead of minReplication (=1)”的可能原因有：
1.Namenode上的代码出现问题，导致存储在Namenode上的复制block不能正常使用；
2.集群中某个DataNode节点无法正常工作，导致其他DataNode无法访问和复制block；
3.Datanode之间的网络连接出现故障，导致无法在Datanode之间进行复制；
4.HDFS文件系统配置错误，导致副本数量太低；
5.HDFS存储空间不足，无法生成必需的DataNode副本；
6.MapReduce作业运行时间太长，导致Datanode节点死机，而无法复制block；
7.HDFS守护进程(Daemon)崩溃，无法正常提供存储服务；
8.YARN容器出现问题，无法正常分配MapReduce任务。
写入的数据量大吗？NN分配DN的时候也会检查DN的负载情况，建议观察写数据的时候DN的磁盘io等指标