Hi, After trying to upgrade to 2.6.3 and failing I proceeded to a downgrade back to 2.6.2 The downgrade finished with the following error: (Finalize Downgrade -> Save Cluster State -> Save Cluster State) Reason: There is an existing downgrade from 2.6.3.0-235 which has not completed. This downgrade must be completed before a new upgrade or downgrade can begin. And the stderr output: org.apache.ambari.server.AmbariException: The following 1 host component(s) have not been downgraded to their desired versions: host_a5: NODEMANAGER (current = 2.6.3.0-235, desired = 2.6.2.0-205) But this command from the ambari server returned: (https://community.hortonworks.com/questions/141083/hdp-262-upgrade-stuck.html) psql ambari -U ambari... SELECT h.host_name, hcs.service_name, hcs.component_name, hcs.version FROM hostcomponentstate hcs JOIN hosts h ON hcs.host_id = h.host_id ORDER BY hcs.version, hcs.service_name, hcs.component_name, h.host_name; host_a5 | YARN | NODEMANAGER | 2.6.2.0-205 host_a6 | YARN | NODEMANAGER | 2.6.2.0-205 host_a7 | YARN | NODEMANAGER | 2.6.2.0-205 host_a8 | YARN | NODEMANAGER | 2.6.2.0-205 Any ideas? ... View more