I found the problem by digging down the the actual daemon that got started and running it without the --daemon option.  The issue was that I had underscores in my hostnames.  Once I removed them the problem went away.   As a note, if cloudera-scm-agent doesn't work with underscores in the hostnames, this is something that should be caught earlier in the manager, for example when entering the hostnames for installation. ... View more