Comments (2)
Hi @Pluggi! Thanks for reaching out.
By default, PGO leverages pgBackRest for the management of WAL archives (meaning pgBackRest ensures WAL is properly archived and available to the various replicas within the PostgresCluster - while also providing a ton of great features to ensure WAL is effectively and efficiently archived & available). So because of this, PGO simply sets use_slots
to false
by default.
That being said, PGO does allow this setting to be turned on. In fact, certain functionality provided by the HA system (Patroni) requires use_slots
to be enabled:
https://patroni.readthedocs.io/en/latest/dynamic_configuration.html#dynamic-configuration-settings
slots: define permanent replication slots.
...
Enabling permanent replication slots requires postgresql.use_slots to be set to true.
So use of the setting really depends on your use. And I'll note that if you are seeing any issues with WAL that has you reaching this setting, I would definitely be curious to hear any further details/specifics.
Hope this helps!
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