Configuration property - expected number of workers of H2O cloud.
Starting size of cluster in case that size is not explicitly passed
Configuration property - multiplication factor for dummy RDD generation.
Secure internal connections by automatically generated credentials
Location of iced directory for Spark nodes
Configuration property - base port used for individual H2O nodes configuration.
Configuration property - number of retries to create an RDD spread over all executors
Subsequent successful tries to figure out size of Spark cluster which are producing same number of nodes.
Translate hostnames of the worker nodes discovered by Spark to the IP address.