PolarDB-X 1.0 provides an instance monitoring feature to help you track the health and performance of your instances. This topic describes how to view performance monitoring metrics for a PolarDB-X 1.0 instance on the Instance Monitoring page.
Instance monitoring metrics
| Metric category | Monitoring metric | Parameter | Description |
| Resource | CPU | cpu |
The average CPU utilization of the compute nodes in the PolarDB-X 1.0 instance. |
| Memory Capacity | old |
The memory utilization of the compute nodes in the PolarDB-X 1.0 instance. Fluctuations in memory utilization are normal. | |
| Network | netin (inbound traffic) |
The total inbound traffic of the compute nodes in the PolarDB-X 1.0 instance, measured in Kbit/s. Inbound traffic is generated when storage nodes return data to compute nodes. | |
netout (outbound traffic) |
The total outbound traffic of the compute nodes in the PolarDB-X 1.0 instance, measured in Kbit/s. Outbound traffic is generated when compute nodes send physical SQL statements to storage nodes or return data to applications. | ||
| Engine | Logical QPS | lqps |
The total number of SQL statements processed per second by the PolarDB-X 1.0 instance. |
| Physical QPS | pqps |
PolarDB-X 1.0The total number of SQL operations sent from compute nodes to storage nodes per second. | |
| Logical RT | lrt |
The average response time for each SQL statement processed by the PolarDB-X 1.0 instance. | |
| Physical RT | prt |
PolarDB-X 1.0The average response time for SQL statements sent from compute nodes to storage nodes. | |
| Active Connections | con |
The total number of connections from applications to the PolarDB-X 1.0 instance. | |
| Active Threads | thread |
The number of threads used to execute SQL statements in the PolarDB-X 1.0 instance. |
Note
- The data collection interval is 1 minute for all Resource metrics and 5 seconds for all Engine metrics.
- You can view monitoring data from the last 7 days.
Procedure
Log on to the PolarDB-X 1.0 console.
In the top navigation bar, select the region where the instance is deployed.
- On the Instances, find the target instance and click its ID.
- In the left-side navigation pane, click .
- On the Instance Monitoring page, configure the following parameters:
Parameter Description Metrics Select Resource or Engine. Metrics Select the monitoring metric that you want to view. For more information, see Instance monitoring metrics. Query time Select a predefined time range, such as 1 hour, 6 hours, 12 hours, 1 day, or 1 week, or specify a custom time range from 1 minute to 7 days.