View the resource and engine metrics of an ApsaraDB RDS for PostgreSQL instance

Procedure

1. Open the Monitoring and Alerts page.
   1. Log on to the ApsaraDB for RDS console. In the left-side navigation pane, click Instances. In the top navigation bar, select the region where your RDS instance resides.
      
   2. Find your RDS instance and click its ID. In the left-side navigation pane of the page that appears, click Monitoring and Alerts.
2. On the Standard monitoring tab, specify a time range. Then, you can view the metrics that appear. The following table lists the metrics that are monitored when different PostgreSQL versions and RDS editions are used.

   PostgreSQL version and RDS edition	Monitoring type	Metric
   PostgreSQL 10 on RDS High-availability Edition with local SSDs, PostgreSQL 10 on RDS Basic Edition, and PostgreSQL 9.4	Resource monitoring	Memory Usage
   		CPU Utilization
   		Disk Space
   		IOPS
   		Total Connections
   PostgreSQL 10 on RDS High-availability Edition with standard or enhanced SSDs, PostgreSQL 11, PostgreSQL 12, and PostgreSQL 13	Resource monitoring	CPU Utilization
   		Memory Usage
   		Data Disk IOPS
   		Data Disk Usage
   		Disk Space Used (MB)
   	Engine monitoring	Connections
   		Operation Rows
   		TPS
   		Longest Bloat Duration (s)
   		Latency (Bytes)
   		Slow Queries
   		Long-running Transactions
   		2PC Transactions