I just tried to create an OpenShift 4.7 cluster using a vCenter appliance that was configured with the "tiny" size from the installer. This gives it 2 vcpus and 10GB RAM. I was using Installer Provided Infrastructure (IPI) on vSphere 6.7. The cluster creation failed with a timeout. I looked at the vCenter server performance stats and saw that it was using all of its CPU and memory. So I destroyed the cluster and doubled the resources on the vCenter VM. I then ran the cluster creation again, and everything completed as expected.
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