ambari hdfs 重启报错:Retrying after 10 seconds. Reason: Execution of '/usr/hdp/current/hadoop-hdfs-namenode/bin/hdfs dfsadmin -fs hdfs://master:8020 -safemode get | grep 'Safe mode is OFF'' returned 1.
原因:hdfs进入安全模式,关闭安全模式即可。
解决方案:
1.切换到hdfs用户
su hdfs
2.关闭安全模式
hadoop dfsadmin -safemode leave
ps:hdfs为最高权限用户,在root命令下执行该命令会报错