February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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How it works...
Once installed, we need to ensure that our rep_user user, which we've used in the past, has PostgreSQL superuser capabilities. Slony performs many tasks that are only available to superusers, so this step is not optional. Then, we modify the postgres user's .pgpass file to allow the rep_user database user to connect from either node. While we're making user changes, we also alter pg_hba.conf on both nodes so that each server can connect to the other. Once we reload the PostgreSQL configuration files, the user setup is complete.
We should note that more advanced installations will probably have a specific user for streaming replicas and a completely separate user for logical replication solutions such as Slony due to the superuser ...
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