I finally had a mostly working installation and then restarted my vm and had severe issues getting things running again.
I saw Sasha’s recent post referencing ‘service hmc start’ but I have no hmc service. This seems to be a consequence of the 1.2 ambari install. The only obvious hdp related services are hdp-gmetad, hdp-gmond, and nagios which I issued service start commands to.
I found in the documentation a similar reference to ‘ambari-server start’ and ‘ambari-agent start’ which I did but still nothing appears to be starting although at least now the ambari portal knew that I had a cluster already installed.
I finally resorted to running start_all.sh in the hadoop/bin directory and everything seems mostly up although the dashboard is still complaining about an inaccessible ganglia service and the whole monitoring infrastructure seems flaky – complaining that services are down even though they are up.
Can someone shed some light on the expected restart procedure for 1.2?