NB! Any changes to recovery.conf require DB instance restart to take effect. Can't just reload. Basic Lag Query (run from standby): select pg_last_xact_replay_timestamp(), now() - pg_last_xact_replay_timestamp() as lag;Or: select now() , pg_last_xlog_receive_location() "receive_location" , pg_last_xlog_replay_location() "replay_location" , pg_is_in_recovery() "recovery_status" , now()-pg_last_xact_replay_timestamp() "lag"; |
PostgreSQL >