Description
Describes how the slonik utility can
reach a nodes database in the cluster from where it is run
(likely the DBA's workstation). The conninfo string is the string
agrument given to the PQconnectdb() libpq
function. The user used to connect must be the special
replication superuser, as some of the actions performed later may
include operations that are strictly reserved for database
superusers by PostgreSQL.
The slonik utility will not try to
connect to a given database unless some subsequent command
requires the connection.
Note: As mentioned in the original documents,
edb-async-replic is designed as an enterprise
replication system for data centers. It has been assumed
throughout the entire development that the database servers and
administrative workstations involved in replication and/or setup
and configuration activities can use simple authentication
schemes like "trust". Alternatively, libpq can read
passwords from .pgpass .
Note: If you need to change the DSN information for a node, as would
happen if the IP address for a host were to change, you must
submit the new information using the STORE
PATH command, and that configuration will be
propagated. Existing slon processes
may need to be restarted in order to become aware of the
configuration change.
