Hi,   If you look carefully at the options on the page where you enter in SSH credentials, there's an option to control how many hosts to install simultaneously. By default it is 10.   You may also want to edit the parcel distribution settings when setting up a large cluster, accessible via Administration -> Settings -> Parcels. You may need to exit a wizard (click the Cloudera Manager Logo) to access the Administration menu.   Thanks, Darren ... View more