Setting the engine to global maintenance enables you to start, stop, and modify the engine without interference from the high availability agents. This must be applied to the engine for any setup or upgrade operations that require the engine to be stopped, for instance the installation of the rhevm-dwh and rhevm-reports packages necessary for the Reports Portal.

# hosted-engine --set-maintenance --mode=global

To resume the high availability function of the engine, turn off global maintenance:

# hosted-engine --set-maintenance --mode=none

Both of these commands are to be conducted as the root user.