問題描述:
在Ambari中啓動HDFS中namenode時出現404 - 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.錯誤
解決方法:
# su hdfs //切換到hdfs用戶,ambari默認HDFS最高權限用戶是hdfs
# hadoop dfsadmin -safemode leave //離開安全模式