Effective in version 10.4.0, you can view the maximum number of cluster nodes used by a mapping in a given time duration.
You can use the REST Operations Hub API ClusterStats(startTimeInmillis=[value], endTimeInmillis=[value]) to view the maximum number of Hadoop nodes for a cluster configuration used by a mapping in a given time duration.
For more information about the REST API, see the "Monitoring REST API Reference" chapter in the