hadoop报错：could only be replicated to 0 nodes, instead of 1

最新推荐文章于 2024-10-13 01:30:25 发布

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最新推荐文章于 2024-10-13 01:30:25 发布 · 8k 阅读

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#杨凯 #itblog #hadoop #异常

该博客详细记录了在遇到Hadoop错误'could only be replicated to 0 nodes, instead of 1'时的解决过程。问题根源在于多次格式化导致Hadoop版本信息不一致。解决方案包括停止所有服务，重新格式化NameNode，然后启动服务。此外，还提供了检查DataNode状态和调整namespaceID的方法。" 118029474,9587908,使用dayjs处理elementPlus日期组件格式,"['前端开发', 'Vue', 'elementUI', '日期组件', 'dayjs']

错误

[root@hadoop test]# hadoop jar hadoop.jarcom.hadoop.hdfs.CopyToHDFS
14/01/26 10:20:00 WARN hdfs.DFSClient: DataStreamerException: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File/user/hadoop/test/01/hello.txt could only be replicated to 0 nodes, instead of1
         atorg.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1639)
         atorg.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:736)
         atsun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
 
14/01/26 10:20:00 WARN hdfs.DFSClient: Error Recoveryfor block null bad datanode[0] nodes == null
14/01/26 10:20:00 WARN hdfs.DFSClient: Could not getblock locations. Source file "/user/hadoop/test/01/hello.txt" -Aborting...
Exception in thread "main"org.apache.hadoop.ipc.RemoteException: java.io.IOException: File/user/hadoop/test/01/hello.txt could only be replicated to 0 nodes, instead of1
         atorg.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1639)
         atorg.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:736)
         atsun.reflect.GeneratedMethodAccessor6.invok