DROP NODE GROUP deletes a node group.
DROP NODE GROUP is the internal interface encapsulated in gs_om.
This interface is available only to administrators.
DROP NODE GROUP groupname [DISTRIBUTE FROM src_group_name];
Specifies the name of the node group to be deleted.
Value range: An existing node group.
DISTRIBUTE FROM src_group_name
If the Node Group to be deleted originated from the Node Group specified by src_group_name, set src_group_name to specify the source Node Group, to which the node information should be synchronized after redistribution. This statement is used only for redistribution during scale-out. You are not advised to use it, because it may lead to data distribution errors or Node Group unavailability.