问题随记 —— Cannot create directory /tmp/hive. Name node is in safe mode.
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文章目录
问题描述
Hive 启动时出现以下问题：
Exception in thread "main" java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException): Cannot create directory /tmp/hive. Name node is in safe mode.
The reported blocks 51 has reached the threshold 0.9990 of total blocks 51. The number of live datanodes 2 has reached the minimum number 0. In safe mode extension. Safe mode will be turned off automatically in 2 seconds.
解决方法
输入以下命令关闭 HDFS 的安全模式即可。
hdfs dfsadmin -safemode leave
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