Hi everyone! I have a cluster with 1 NameNode and 4 DataNodes on Red Hat Linux Enterprise 6. My HDP version is 2.1. Ambari version was 1.7 but I upgraded it to 2.1. I want to upgrade HDP to version 2.2. I read that if I want to upgrade HDP from 2.1 to 2.2 I have to do it before I upgrade Ambari to 2.1. When I am upgrading hdp to 2.2 ambari does not see any changes and everything is not working. I am using this tutorial
http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.2.0/HDP_Man_Upgrade_v22/index.html#Item1.1
How can I do it? I tried to downgrade ambari to 1.7 but I got many errors. What if I try upgrade now hdp to 2.2 and then my ambari from 2.1 to 2.1.1. Will it work? The problem is that I have very little time.
Thank you in advance