RHEL 6 to RHEL 7 Upgrade

[#1]

We are planning to migrate all the data nodes from RHEL 6 to RHEL 7 , but looks like direct upgrade is not supporting and we are not confident that it will go smooth. Even if it goes well , there may be a future problem.

Have anyone done RHEL to RHEL 7 upgrade?

We are planning to migrate data to other cluster nodes and do fresh installation. The problem is it might take longer to migrate.

Any specific method to upgrade?

[#2]

I am in the process of performing an inplace upgrade RHEL6.7 to RHEL7.5.

The OS has bee completed.

Postgres has been completed.

Python has been completed.

TLS in ambari as bee set to v1.2

redhat7 repositories have been defined

I am presently experiencing issue with the Zookeeper client install. I'll let you know how this plays out.