Physical Replication Mechanisms in PostgreSQL

Replication slots for High Availability A replication slot exists solely on the instance that created it, and PostgreSQL does not replicate it on the standby

This issue occurs in PostgreSQL when a user attempts to create or manage replication slots without the necessary privileges

start 77 slot Any unused replication slot must be dropped Slots hold on to Postgres WAL logs and relevant system catalogs until changes have been read by a

start_replication slot However, if the primary server is busy, starting up a new streaming replication process will impact server performance Therefore, we can use