What are the minimum and maximum cluster sizes?

[#1]

Question

What are the minimum and maximum cluster sizes?

Answer

The minimum cluster size is 3 worker nodes, 1 Master node, and 1 Cloudera Manager node, for a total of five nodes.  The maximum cluster size varies based on cluster type and public cloud. Further information about this could be found in this  Cloudera Altus Documentation section

NOTE: Each cluster spun up by Cloudera Altus requires 2 additional (master) nodes, one for CM and the other for Master services used for each cluster.  These 2 nodes are a hard-requirement per cluster as they're required for a functional cluster and will need to be accounted for when calculating the public cloud instance limits.