DRDS provides the monitoring feature to help you check the status of your instances. You can view the detailed information about monitoring metrics of instances, databases, or storage nodes in the console. This topic describes how to view performance monitoring data of a DRDS instance on the Instance Monitoring page in the console.
Monitoring metrics of instances
|Metric category||Monitoring metric||Parameter||Description|
||The average CPU utilization of the compute node in the DRDS instance.|
||The memory usage of the compute node in the DRDS instance. Memory usage fluctuations are normal.|
||The total inbound traffic of the compute node in the DRDS instance. Unit: Kbit/s. Inbound network traffic is generated when a storage node returns data to the compute node.|
||The total outbound traffic of the compute node in the DRDS instance. Unit: Kbit/s. Outbound network traffic is generated when the compute node sends physical SQL statements to the storage node or the compute node returns data to applications.|
||The total number of SQL statements that are processed by the instance per second.|
||The total number of SQL operations that are sent from the compute node to the storage node per second.|
||The average response time (RT) for processing each SQL statement by the DRDS instance.|
||The average RT for processing SQL statements that are sent from the compute node to the storage node.|
||The total number of connections between an application and the DRDS instance.|
||The number of threads that are used to execute SQL statements in the DRDS instance.|
- The data collection cycle is 1 minute for the metrics of the Resource category and 5 seconds for the metrics of the Engine category in the preceding table.
- You can view the monitoring data that is generated within seven days.
- Log on to the DRDS console.
- In the top navigation bar, select the region where the target instance is located.
- On the Instances page, find the instance and click the instance ID.
- In the left-side navigation pane, choose .
- On the Instance Monitoring page, specify the following parameters.
Parameter Description Monitoring Index The metric category. Select Resource or Engine. Monitoring Index The monitoring metrics of the instance. Select the monitoring metric that you want to view. For more information about monitoring metrics, see Monitoring metrics of instances. Query Time The query time. You can specify the query time as 1 hour, 6 hours, 12 hours, one day, or one week. You can also customize a query time range. The minimum time range is 1 minute and the maximum time range is one week.