In order to be able to pause/unpause repmgrd, following
prerequisites must be met:
- repmgr 4.2 or later must be installed on all nodes.
- The same major repmgr version (e.g. 4.2) must be installed on all nodes (and preferably the same minor version).
- PostgreSQL on all nodes must be accessible from the node where the
pause/unpause operation is executed, using the
conninfo string shown by repmgr cluster show.
Note: These conditions are required for normal repmgr operation in any case.