Общие метрики:
postgresql.replication.status_info
Метрики ведущего узла на основе представления pg_stat_replication:
postgresql.replication.walsender_all_lag_bytes
postgresql.replication.walsender_all_lag_milliseconds
postgresql.replication.walsender_flush_lag_bytes
postgresql.replication.walsender_flush_lag_milliseconds
postgresql.replication.walsender_info
postgresql.replication.walsender_pending_lag_bytes
postgresql.replication.walsender_replay_lag_bytes
postgresql.replication.walsender_replay_lag_milliseconds
postgresql.replication.walsender_write_lag_bytes
postgresql.replication.walsender_write_lag_milliseconds
Метрики ведомого узла на основе представления pg_stat_wal_receiver:
postgresql.replication.walreceiver_flush_lag_bytes
postgresql.replication.walreceiver_info
postgresql.replication.walreceiver_ping_milliseconds
postgresql.replication.walreceiver_received_bytes