I started an upgrade from 2.2.0.0 to 2.2.4.2. I ran into some problems with a missing Yarn configuration which prevented Yarn from starting and thus the upgrade would not complete. So I successfully rolled back to 2.2.0.0. Now that I’ve corrected my configuration issue, I’m trying to upgrade to 2.2.4.2 again. However, on the versions page (Ambari -> Admin -> Stacks and Versions -> Versions) the 2.2.4.2 version shows “Upgrade: In Process”. When I click on the link, nothing happens. During the first actual upgrade attempt, clicking that link would show the status of the upgrade, but now nothing happens (which makes sense because there isn’t an upgrade actually happening).
How to I get Ambari to see that an upgrade is NOT in progress so that I can actually start an upgrade? Something strange I noticed is that the Version page describe previously shows 15 hosts have the 2.2.4.2 version installed but not current (which is what I expect). However, if I “manage” the version I see that “14/15″ hosts have that version installed. I’ve done “rpm -qa” and looked for 2.2.4.2 versions of the packages and they /are/ installed on all 15 hosts.