Restore old configuration symlinks

Restore old /etc configuration symlinks.

In the "Backup /etc configs" step, the original etc/<service>/conf symlinks were copied to the /etc/<service>/conf.hdp.bak symlink. You can restore them on each host using the following commands.
  1. rm -f /etc/<service>/conf
  2. cp -d /etc/<service>/conf.hdp.bak /etc/<service>/conf

    If the Backup /etc configs step was skipped during the upgrade process, you must manually reset the symbolic links to point to the correct configuration folder.