Perhaps I don’t have the SSH issue resolved. Looking further upstream in the errors, I see a notice like this at the very beginning:
notice: /Stage/Hdp-hadoop::Namenode/Hdp-hadoop::Namenode::Create_app_directories[create_app_directories]/Hdp-hadoop::Hdfs::Directory[/mapred]/Hdp-hadoop::Exec-hadoop[fs -mkdir /mapred]/Hdp::Exec[hadoop –config /etc/hadoop/conf fs -mkdir /mapred]/Exec[hadoop –config /etc/hadoop/conf fs -mkdir /mapred]/returns: mkdir: Call to ..com\xx.xx.xx.xx:8020 failed on connection exception: java.net.ConnectException: Connection refused
I cleared up an issue with being able to SSH to the name node from the name node via the FQDN, but that didn’t help. I’ve also noticed that the /etc/hadoop/conf/ directory ends up having a number of files owned by the hadoop and mapreduce users, but no such users exist on my Name Node.
Now I’m back to considering whether to reset the cluster or trash the name node and rebuild it from scratch from the OS up.