PolarDB:Log resource monitoring

Procedure

1. Log on to the PolarDB for Xscale console.
2. In the top navigation bar, select the region where the target instance is located.
3. On the Instances page, click the PolarDB-X 2.0 tab.
4. Find the target instance and click its ID.

5. In the left-side navigation pane, choose Monitoring and alarm > Log Resource Monitoring.

6. On the Log Resource Monitoring page, you can view the following metrics of your cluster or node.

   Metric	Description
   Processing delay	The latency that occurs when binary log events are being processed. Unit: milliseconds.
   Volume of processed data	The data size of binary log events that are processed per second. Unit: byte/s.
   CPU utilization	The CPU utilization as a percentage value.
   Memory usage	The usage of JVM heap memory as a percentage value. The value of this parameter is calculated based on the following formula: Usage of JVM heap memory = Amount of the used JVM heap memory/Total amount of JVM heap memory × 100%.
   Processed events	The number of binary log events that are processed per second.
   Processed transactions	The number of transactions that are processed per second.
   Executed DML statements	The number of DML statements that are executed per second.

   • To view the metrics of your cluster, click the Cluster tab. Specify the time range within which the metrics that you want to view are collected and click OK.

   • To view the metrics of a node, click the Node tab. Select the log node whose metrics you want to view from the drop-down list, specify the time range within which the metrics that you want to view are collected, and then click OK.