Monitor the computing resources of a PolarDB-X instance
Compute Monitoring lets you track the performance of your PolarDB-X instance across three scopes — instance, cluster, and individual node. Use it to identify CPU saturation, slow SQL activity, JVM garbage collection pressure, and network bottlenecks before they affect end users.
Compute Monitoring is available for PolarDB-X Enterprise Edition instances only.
View compute monitoring data
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Log on to the PolarDB-X console.
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In the top navigation bar, select the region where the instance is deployed.
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On the Instances page, click the PolarDB-X 2.0 tab.
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Find the instance that you want to manage and click its ID.
In the left-side navigation pane, choose .
On the Compute Monitoring page, select a monitoring scope:
Scope How to query Instance tab Specify a time range and click OK Cluster tab Specify a time range and click OK Node tab Select a node from the drop-down list, specify a time range, and click OK NotePerformance data is retained for 30 days. The data collection interval is configurable.
Metrics reference
Resource metrics
| Metric | Description |
|---|---|
| CPU | Average CPU utilization over the selected time range. |
| Memory | JVM heap memory usage as a percentage of total heap capacity. |
Query performance metrics
| Metric | Description |
|---|---|
| Average or logical response time | Average response time of logical requests (user-initiated queries). |
| Physical response time | Average response time of physical requests sent to data nodes. |
| QPS or logical QPS | Number of user requests processed per second by the compute node. |
| TPS or logical TPS | Number of transactions processed per second. |
| Physical QPS | Number of requests sent to data nodes processed per second. |
| Logical slow SQL queries | Number of slow SQL queries initiated by users per second. |
| Physical slow SQL queries | Number of slow SQL queries sent to data nodes per second. |
Network metrics
| Metric | Description | Unit |
|---|---|---|
| Inbound network traffic | Total inbound network traffic on the compute node. | Kbit/s |
| Outbound network traffic | Total outbound network traffic on the compute node. | Kbit/s |
Session metrics
| Metric | Description |
|---|---|
| Total number of sessions | Total number of sessions per second. |
| Active sessions | Number of active sessions per second. |
Garbage collection metrics
| Metric | Description |
|---|---|
| Young GC time | Time consumed by garbage collection in the young generation per second. |
| Full GC time | Time consumed by full garbage collection per second. |