global_streaming_hadr_rto_and_rpo_stat

global_streaming_hadr_rto_and_rpo_stat displays the log flow control information about the primary and standby database instances for streaming DR. This view can be used only by primary database node of the primary database instance. Statistics cannot be obtained from the standby database node or standby database instance.

Table 1 global_streaming_hadr_rto_and_rpo_stat parameters

Parameter	Type	Description
hadr_sender_node_name	text	Node name, including the primary database instance and the first standby node of the standby database instance.
hadr_receiver_node_name	text	Name of the first standby node of the standby database instance.
current_rto	int	Flow control information, that is, log RTO time of the current primary and standby database instances (unit: second).
target_rto	int	Flow control information, that is, the RTO time between the target primary and standby database instances (unit: second).
current_rpo	int	Flow control information, that is, log RPO time of the current primary and standby database instances (unit: second).
target_rpo	int	Flow control information, that is, the RPO time between the target primary and standby database instances (unit: second).
rto_sleep_time	int	RTO flow control information, that is, the expected sleep time (unit: μs) required by walsender on the host to reach the specified RTO.
rpo_sleep_time	int	RPO flow control information, that is, the expected sleep time (unit: μs) required by xlogInsert on the host to reach the specified RPO.