Disaster recovery instance group details
After you create a disaster recovery instance, you can view the basic information, topology, and configuration list of the instance group on its details page.
Prerequisites
Page overview
Go to the Global Distributed Database page. In the instance group list, click the ID of the target disaster recovery instance group to open its details page and view its basic information, topology, and configuration list.
Basic information
The basic information includes the instance group ID, Name, Type, Database Engine, Creation time, Status, and Region.
Topology
The topology diagram visualizes the relationship between the primary instance and its disaster recovery instances, showing details such as the status of synchronization links, the status of individual instances, and other basic information.
Click the instance ID for each role to open the corresponding RDS instance details page.
Configuration list
The configuration list is divided into the RDS instance list and DTS instance list, as described below:
Synchronization performance
You can specify a time range to view the following performance monitoring metrics:
-
dag_lag_seconds: Replication lag -
dag_unhealthy_db_count: Number of unhealthy databases in synchronization -
dag_log_send_queue_size_kb: Log sending queue size -
dag_log_send_rate_kb_per_sec: Log sending rate -
dag_log_redo_queue_size_kb: Log apply queue size -
dag_log_redo_rate_kb_per_sec: Log apply rate