We use HDFS on Isilon OneFS and the upgrade would normally get stuck on upgrade check on the Isilon node. In order to allow the upgrade to proceed, we have to disable the preUpgradeCheck. Hoping Ambari will eventually have a better documented upgrade guide for those who use Isilon HDFS. ... View more

both hostname and hostname -f come back with the same FQDN. I think I found my problem to be that /var/run/ambari-server was missing both the ./bootstrap and ./stack_recommedations dirs. /var/run/ambari-server was owned by root and it appears to have needed to be writable by the ambari user. After making these changes, these errors stopped. I have no idea why this suddenly happened though. ... View more

Did anyone ever resolve this issue? I'm having the same exact issue, but cannot find the solution. I too have verified that hostname and hostname -f return the same result; passwordless ssh is working... ... View more