BDR Documentation | |||
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Note: Read Node management common to both UDR and BDR before this section.
For BDR every node has to have a connection to every other node. To make conifguration easy, every node addition automatically adds awareness of the new to all preexisting nodes.
The SQL function bdr.bdr_group_create is used to create the first node of a BDR cluster from a standalone PostgreSQL database. Doing so makes BDR active on that database and allows other nodes to join the BDR cluster (which consists out of one node at that point). Once the initial node is created every further node can join the BDR cluster using the bdr.bdr_group_join function.
See also: Node management functions, bdr_init_copy.