21.3. repmgr setup

Register both nodes; example on node1:

        $ repmgr -f /etc/repmgr.conf bdr register
        NOTICE: attempting to install extension "repmgr"
        NOTICE: "repmgr" extension successfully installed
        NOTICE: node record created for node 'node1' (ID: 1)
        NOTICE: BDR node 1 registered (conninfo: host=node1 dbname=bdrtest user=repmgr)

and on node1:

        $ repmgr -f /etc/repmgr.conf bdr register
        NOTICE: node record created for node 'node2' (ID: 2)
        NOTICE: BDR node 2 registered (conninfo: host=node2 dbname=bdrtest user=repmgr)

The repmgr extension will be automatically created when the first node is registered, and will be propagated to the second node.

Important: Ensure the repmgr package is available on both nodes before attempting to register the first node.

At this point the meta data for both nodes has been created; executing repmgr cluster show (on either node) should produce output like this:

        $ repmgr -f /etc/repmgr.conf cluster show
        ID | Name  | Role | Status    | Upstream | Location | Connection string
       ----+-------+------+-----------+----------+--------------------------------------------------------
        1  | node1 | bdr  | * running |          | default  | host=node1 dbname=bdrtest user=repmgr connect_timeout=2
        2  | node2 | bdr  | * running |          | default  | host=node2 dbname=bdrtest user=repmgr connect_timeout=2

Additionally it's possible to display log of significant events; executing repmgr cluster event (on either node) should produce output like this:

        $ repmgr -f /etc/repmgr.conf cluster event
        Node ID | Event        | OK | Timestamp           | Details
       ---------+--------------+----+---------------------+----------------------------------------------
        2       | bdr_register | t  | 2017-07-27 17:51:48 | node record created for node 'node2' (ID: 2)
        1       | bdr_register | t  | 2017-07-27 17:51:00 | node record created for node 'node1' (ID: 1)
      

At this point there will only be records for the two node registrations (displayed here in reverse chronological order).