host:port is the address of the template cluster. namespace is the cluster namespace.
ShardClusterURL identifies the existing node (typically node 1) to use as a template when adding a node to a cluster. In conjunction with several other parameters, ShardClusterURL can be used to deploy a sharded cluster. For a description of this process, see Configure or Deploy a Cluster Using CPF Settings in the “Horizontally Scaling for Data Volume with Sharding” chapter in the Scalability Guide.
ArbiterURL to specify the address of the arbiter for a mirrored sharded cluster.
ShardRole to specify the sharded cluster role of the instance.
ShardClusterURL to specify the node to use as a template when adding an instance to a sharded cluster.
ShardMirrorMember to specify the failover role of a data node in a mirrored sharded cluster.
ShardMasterRegexp to identify the sharded cluster node to be configured as data node 1 based on hostname.
ShardRegexp to identify the nodes to be configured as sharded cluster data nodes (other than data node 1) based on hostname.