PostgreSQL 16 Documentation: Streaming Replication Protocol

A PostgreSQL replication slot is a vital feature ensuring the master server retains necessary Write-Ahead Log files, even when replicas

pid terminated,application_controller,{application_start_failure,realtime,{{shutdown,{failed_to_start_child,' Replication',{{badmatch

replication slot is active for pid pid 23095 usesysid 169593 usename repmgr application_name active t active_pid 6689 xmin catalog_xmin restart_lsn

replication slot postgres A replication slot ensures that the needed WAL files for the standby are not removed in the primary server before the standby server processes