https://community.cloudera.com/t5/Support-Questions/HDFS-gets-0-datanodes-live-but-datanodes-are-started/m-p/282823#M210417 <P>Can you try to leave the safemode.<BR />And see if the communication is resumed back from datanodes to Name node.</P><P>You can use below command.</P><P><SPAN>hadoop dfsadmin -safemode leave</SPAN></P> Wed, 13 Nov 2019 04:56:48 GMT fa 2019-11-13T04:56:48Z