https://community.cloudera.com/t5/Support-Questions/FAILED-to-start-HDFS-Namenode/m-p/49608#M52128 check if all the firewall services are turned off, including firewalld and<BR />iptables etc. For me, it worked after I stopped firewalld.<BR /><BR /> Wed, 18 Jan 2017 08:29:44 GMT zeeshan.khan 2017-01-18T08:29:44Z