Postgres logical replication concepts

The slot to be dropped must be inactive before it can be removed It is not possible to forcibly drop an active replication slot Change history PostgreSQL

Postgres logical replication concepts A physical replication slot prevents a source DB instance from removing WAL data before it's consumed by all read replicas Each read replica has its own

The slot to be dropped must be inactive before it can be removed It is not possible to forcibly drop an active replication slot Change history PostgreSQL

postgres create logical replication slot Postgres restart is required! Enabling logical replication Page 5 5 ○ Provide guarantees that WAL

Allow you to replicate data out of Postgres · Use the write-ahead log as the source of changes · Use logical replication slots to send out

postgres delete replication slot 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

Store replication slot name , type , plugin , database and datoid If PostgreSQL version is 10 or newer also store catalog_xmin and confirmed_flush_lsn When