错误信息:
Caused by: java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.RetriableException): org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /tmp/hive/vagubchd/4ca66724-71ac-4d64-b263-3aca96514e8e. Name node is in safe mode.
解决方法:
检查
hdfs fsck /
#可以看到Minimally replicated blocks: 不为100%,可能缺少block
关闭安全模式
hadoop dfsadmin -safemode leave
修复
hdfs fsck / | egrep -v '^\.+$' | grep -v eplica
参考
http://blog.csdn.net/hongweigg/article/details/7185328
https://stackoverflow.com/questions/19205057/how-to-fix-corrupt-hdfs-files