https://community.cloudera.com/t5/Support-Questions/Failed-to-start-secondary-namenode/m-p/298646#M219297 <P>Hi Sihi,</P><P>&nbsp;</P><P>I also encountered similar issue while enabling HA on name-node. We fall into this issue usually because we miss some instructions while enabling HA , like in my case I missed one step to create checkpoint on second NN.&nbsp;</P><P>&nbsp;</P><P>To overcome this thing , please try to start the HA enabling process once again from Ambari UI . And follow every step again correctly. It will again try to create secondary NN and you will be able to bring back the cluster to green state.&nbsp;</P><P>&nbsp;</P><P>Thanks</P><P>Arun&nbsp;</P> Thu, 25 Jun 2020 17:14:51 GMT arunek95 2020-06-25T17:14:51Z