Functions - getClusterRecordSizeById()
This method returns the number of records in a cluster identified by its Cluster ID.
Retrieving Cluster Counts
OrientDB uses clusters to determine where it stores records. Using this method you can determine the number of records in a cluster. You may find this useful in any sort of counting function to check and report the size of a cluster.
Syntax
var size = db.getClusterRecordsById(<id>)
<id>
Defines the Cluster ID.